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Roll-up phones: the new trend in smartphones?

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Innovation in technology does not follow a linear trajectory. Every so often, technology surprises us by including new features in our mobiles that represent a fairly large leap compared to what we knew so far.

This applies precisely to equipment that we use daily such as smartphones. Over the years, new phones have had better cameras, higher screen resolution, faster processors, and, now, with flexible screens, the ability to increase the size of your smartphone screen depending on use.

The first to arrive were the folding mobiles, which fold in half thus allowing to have a standard-size screen in a much smaller format ( the flip-type ) or a standard-size screen that, when opened, gains in size until it almost becomes a tablet (the foldable type ).

And what will be next, you ask? Take a seat because we are going to tell you all about the new technology: rollable or roll-up screens.

You can already find this technology on a television

In fact, roll-up displays have been around for a while: LG has launched the LG Signature OLED TV 65R9, a display with a flexible OLED panel, which folds out to the size of a normal 65-inch TV but can also be worn at a medium height to display content that does not require a full screen or hide completely to look like a soundbar.

A new trend: the roll-up mobile

Some time ago we talked to you about the new mobile formats, and today here we show you how manufacturers want to continue to differentiate themselves by innovating in the screen format. We have the famous flip and foldable and others even more innovative with double rotating screens, but until today there was none with the ability to unroll to become a tablet. Can you imagine all the situations in which it would be useful to have this option?

That is what the new mobiles that some companies are developing a promise, and that they have recently presented to us at CES 2021.

How would this type of device work? Just like normal smartphones do, but with a big change: with the press of a button or a gesture you can make your phone expand to the size of a tablet.

So far three technology firms have confirmed that they are working on these types of concepts: LG, Oppo, and TCL.

LG Rollable?

In January this year, within the framework of CES, LG has unveiled for a brief moment what would be its first “rollable” device. At first glance, it looks like a normal 6.8 ″ smartphone, but with the push of a button, it can expand to 7.4 ″. On the other characteristics there is not much clarity, but considering that we are talking about premium mobiles, the rest of the specifications will surely be on par with the latest models of the flagship range.

OPPO X 2021

It is undoubtedly one of the new mobiles that have generated the most attention in recent months. The OPPO X 2021 incorporates a 6.7-inch rollable OLED screen in its initial state, being able to reach 7.4 inches once it is unrolled, being in a more square format, in the style of a tablet.

Will rolling mobiles be a trend?

That is a difficult question to answer because although the technology to create these teams is already available, one of the main difficulties to massify them is that, as with the ‘foldables’ their launch price will possibly be quite high in the beginning. However, if this technology means that you do not need to buy a tablet separately, surely users will be willing to spend a little more on these ‘rollable’, especially if, as we are seeing in these prototypes, the thickness of the terminal is still that of a standard smartphone.

What could this type of mobile with an expanded screen be used for? The answer that first comes to mind is related to entertainment: enjoying video games, movies, or YouTube videos on a bigger screen and with better resolution would be one of your main goals.

Last conclusions

Flexible displays are one of the biggest innovations we’ve seen in this segment, and they’re going to be a revolution in the coming years. We will see smartphone formats that we have never seen before and we will see screens on devices that have never had it due to the physical space available. As always with new technologies, the prices are relatively high compared to what is on the market right now, but we can also tell you that as has always happened, we will see this type of screen more and more in more devices and at lower prices depending on the market naturally adopts this type of screen. While these new devices arrive on the market, at tu.com we have a selection of the best smartphones, take a look

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Know the Key Points That Outline the Prince 2® Framework

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PRINCE is the abbreviation for Projects in Controlled Environments. It was first invented in the UK as a step by the Government to try out new methodologies for project management. However, it soon gained vast popularity across the globe owing to its good results. AXELOS is the authority figure behind the PRINCE framework. This means that when you get the PRINCE 2 certification, it is the accreditation from AXELOS that will gain you recognition in any part of the world, wherever an organization is searching for PRINCE 2® experts to be hired. So gear yourself up, as we will take a deep dive into the key points of the PRINCE 2® framework in this article!

1.     Your Project Should Always Have a Business Justification –

Starting from the initial steps to the end results, according to the guidelines mentioned in the PRINCE2® foundation and practitioner course, every step of the project must always have a justification. There must be a factor of accountability present where the upper management must keep a check on where there is a good return on investment. Not only that, the risks of the object must be controlled, and the benefits must outweigh the setbacks of the project.

2.     Everyone Must Be Aware of Their Roles and Responsibilities –

An important aspect of the PRINCE 2® methodology is that every team member must be thoroughly aware of their roles. Not only that, but everyone must also know their responsibilities as a part of a team. This is in order to ensure that there are a few setbacks, confusion, and drastic delays as possible in the follow-up meetings. It is a common scenario in meetings to hear that “I thought Mr.X was responsible to take care of this task.” The PRINCE 2® certified project manager is responsible to look out for these scenarios.

3.     The Team Members Must Have a Controlled Focus but With a Little Room for Improvisation –

If you are working in a PRINCE 2® environment, you are expected to focus your full attention on meeting the requirements to achieve the end goal. But at the same time, you must maintain the quality of your work to the highest standard. However, the prince 2 methodology also leaves space for improvisation according to your specific work area-related requirements. If you are adopting the method, you must first identify which areas can be improvised in the methodology.

4.     The Team Must Always Keep on Evolving –

The PRINCE 2® methodology mentions a controlled environment, meaning that there must be a “lessons learned” log maintained by the team. This ensures that mistakes are avoided as much as possible. There must also be retrospective meetings where each member of the team gets to reflect on their overall performance.

Final Word

The PRINCE 2® methodology has different levels of qualification courses. This includes the PRINCE 2® Foundation course, the second one is the practitioner course. Make sure that you choose one according to your qualifications!

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11 Ways to Fix We couldn’t complete the updates, undoing changes in Windows 10

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How to solve the error message “ We couldn’t complete the updates, undoing changes – don’t turn off your computer ” on Windows 10? If you are experiencing this problem then you have come to the right site because this article will help you to get out of the problem.

Well, this Windows 10 is the latest edition of the Operating System made by Microsoft and like all other OS Windows 10 also definitely has a lot of problems. But what I’m focusing on here is when downloading a new update ( update ) and restarting the PC, the update process just crashes and Windows can’t start and what appears is an error message, read more.

And it turned out that we were just stuck in the message then I tried to wait until it was finished but in the end it didn’t work, it just restarted  by itself. In addition to the error above after the restart process is  complete, you may start seeing some progress messages like this:

“Installing Updates 15% We couldn’t complete the updates, Undoing changes, Don’t turn off your –  computer Restarting” and I have good news that the process goes up again to 30% and the bad news is the computer restarts again and this will continue to occur if you do not make changes to your PC.

Cause of error We couldn’t complete the update, undoing changes

  • Windows Update can’t download smoothly. If the updates that Windows installed don’t download properly, this could cause an error to appear.
  • Insufficient hard disk space. In some cases, if you don’t have enough space for updates on your system volume, the problem could also be because of that.
  • The update was interrupted during installation. If the update is interrupted during the installation process like PC shuts down, etc. Errors can be caused by it.
  • System files are corrupted. Another factor causing this problem to appear is your corrupted system files.
  • There are applications, drivers etc that are not compatible with your PC. If indeed you have recently installed additional applications then it is highly recommended to delete them.

How to solve the error message We couldn’t complete the updates, undoing changes

Run CMD (Command Prompt) in Administrator mode.

Now type the following code then hit enter for each line of code:

  1. net stop wuauserv
    2. net stop bits
    3. net stop cryptSvc
    4. net stop msiserver

Then open file explorer then delete all files and folders in  C:WindowsSoftwareDistribution .

Now open CMD again and still in admin mode then type the following code and hit enter:

  1. net start wuauserv
    2. net start cryptSvc
    3. net start bits
    4. net start msiserver

Restart your PC to save the rules.

Try to reinstall Windows updates and this time it should work.

If you’re afraid you’re having the same or another problem, you can create a restore point before you download Windows updates.

Download Windows Update Troubleshooter

  • Please download Windows Update Troubleshooter .
  • Once the file is successfully downloaded, double click on the file to run it.
  • Select Windows Update and click Next .
  • Follow the instructions given.
  • If a problem is found, please click ” Apply this fix “.
  • Please to install Windows updates again.

Run the Readiness App

  • Press the Windows icon + R , then type services.msc .
  • Many services will appear in a new window, please look for a service called App Readiness and then double click it.
  • Change the Startup Type to Automatic and click Start .
  • Click Apply and then click OK .
  • Restart your PC and the problem should be resolved.

Disable Automatic Updates

  • Please press Windows + R again and type services.msc .
  • Now locate the service named Windows Updates and double click on the service it.
  • Change the Startup Type to Disabled then click Stop .
  • Click Apply then OK .
  • Restart the PC and try to reinstall Windows updates.

Increase Partition Size for System

Note: If you are using Drive Encryption like Bit Locker then you will need to remove it.

  • You can increase the partition size manually or using the EaseUS application .
  • Press Windows + R and type diskmgmt.msc .
  • Now to increase the size of the Partition you must at least have one empty partition first.
  • To create it, right-click on the partition to be freed and then click Shrink Volume .
  • After that, right-click on the partition that was successfully shrink and then click Extend Volume .
  • Restart the PC and the error message should no longer appear.

Use Alternative Method

If the five methods above still don’t solve your problem, maybe you can use the alternative methods below:

  • First, you can download CC Cleaner for and run a scan to fix registry problems.
  • Second, create a new admin account and you can run updates using that account.
  • Third, if you know which update is causing the problem then you can download it manually and try to install the update. The update file can be seen here:  https://catalog.update.microsoft.com/ .
  • Fourth, remove any kind of VPN installation on your PC.
  • Fifth, try to turn off antivirus and turn off Windows Firewall.
  • Sixth, try to refresh the PC and the system will automatically fix the problem if detected.

Note: The method below is a way for those of you who cannot enter the Windows menu and if you can enter the Windows menu then you must try the method described above.

Use System Restore

  • You must have a cassette / Flashdisk containing a bootable Windows 10.
  • Restart your Windows 10.
  • During the restart process, please enter the BIOS and on the boot menu select USB or DVD/CD according to the bootable you entered, whether flash or cassette.
  • Restart your PC.
  • If bootable is detected, Windows setup will appear then click Repair your computer .
  • After that on the Choose an option menu , select Troubleshoot .
  • After entering the Troubleshoot menu, select Advanced Options .
  • Then, on the Advanced options menu click System Restore .
  • Select the restore point that was created before the Windows update.
  • When Windows restarts you won’t get any more error messages.
  • If this method works then you should keep trying method no 1 above.

Delete Problematic File Updates

  • Do the same thing as number 7 above until you enter the Windows setup menu.
  • Still the same, please click Repair your computer .
  • Go to the Troubleshoot → Advanced Options → Command Prompt menu .
  • Type the following code and hit enter at each line of code:
  1. cd C:Windows
    2. del C:WindowsSoftwareDistribution*.* /s /q
  • Close the command prompt and restart your PC.
  • You will be able to enter the Windows menu.
  • If the error message sometimes still appears then you should try methods 1-6 above.

Run SFC and DISM

  • Still run the command prompt in the manner described above.
  • Type sfc /scannow in cmd and press enter.
  • Wait until the scanning process is complete usually takes 5-15 minutes.
  • If so then type the following code and press enter on each line of code:
  1. Dism /Online /Cleanup-Image /CheckHealth
    2. Dism /Online /Cleanup-Image /ScanHealth
    3. Dism /online /Cleanup-Image /startcomponentcleanup
    4. Dism /Online /Cleanup-Image /RestoreHealth
  • Attention: the above process is not a fast process, this process can take up to 2 hours or even 5 hours according to your computer specifications.
  • After the Dism process is run, then you repeat again method no 2 in this section.
  • Restart the PC and the problem will be resolved.

Turn off Secure Boot

  • Restart your PC.
  • When the computer starts up, please enter the BIOS menu.
  • Find the Secure Boot setting and change it to disabled , usually Secure Boot is on the Security tab, Authentication Tab, or Boot Tab.
  • Caution: After disabling Secure Boot, it may be difficult to re-enable Secure Boot unless you have to factory reset your PC.
  •  Restart your PC and the error should no longer appear.
  • If successful, please re-enable secure boot earlier.

Remove System Reserved Partition

Open CMD like method no 8 above and enter the following code:

  1. bcdboot C:Windows /s C:
    2. diskpart
    3. list vol
    4. select vol (Select System Volume)
    5. act
    6. list vol
    7. select vol (Select System Reserved Volume)
    8. inactive
    9. exit

You can see the system volume and system reserved volume in the info and label section of cmd.

Configure BCD with the following code:

  1. bcdedit /set {bootmgr} device partition=C:
    2. bcdedit /set {default} device partition=C:
    3. bcdedit /set {default} osdevice partition=C:

Before making changes or rebooting , make sure you have Windows installation DVD or WinPE/WinRE Cd or USB flash Drive in case of Windows Boot failure. If Windows won’t boot, use the Windows installation disc to boot  which can be seen here: How to Make a WinPE Bootable USB .

After that, at the command prompt type the following code:

  1. bootrec /fixmbr
    2. bootrec /fixboot
    3. bootrec /rebuildbcd

After the reboot process , move WinRE from the system reserved partition to the system partition .

Now reopen the command prompt and type the code below and change the drive letter according to your partition letter which can be seen on diskpart.

  1. diskpart
    2. list vol
    3. select vol <Recovery Volume>
    4. assign let=R
    5. Disable WinRE:
    6. reagentc /disable
  1. Remove WinRE from the reserved partition with the code  rd R:Recovery .
  2. Copy WinRE to the system partition with the code  robocopy C:WindowsSystem32Recovery R:RecoveryWindowsRE WinRE.wim /copyall /dcopy:t .
  3. Configure WinRE :  reagentc /setreimage /path C:RecoveryWindowsRE .
  4. Finally enable WinRE :  reagentc /enable .
  5. For future use, create a new partition at the end of the drive (after the OS partition) and save the WinRE and OSI (Original System Installation) folder containing all the files contained in the Windows 10 DVD. Make sure you have enough free space on your hard disk to create this partition drive (usually 100GB). If you choose to create this partition, it is important that you set the partition ID flag to 27 (0x27) using Diskpart, which determines that it is the Recovery partition.

The final word

If nothing else works then Restore your PC to an earlier time ( restore point ), remove the problematic update from Control Panel, disable automatic updates and use your PC normally until Microsoft attempts to fix this update issue. In a few days, maybe 20-30 days, try to install the update again, if it still fails, please try the above method again. As for if you don’t want Windows updates and want Windows to return to normal then the most effective solution is to reinstall.

That’s about How to Overcome We couldn’t complete the updates, undoing changes in Windows 10, please ask if there are other problems in the comments section. Thank you..

 

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Beginners Steps to Land on a DevOps Engineer Profile

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Considering the current IT market, the domain that looks like the best option for the IT folks’ career growth and salary is DevOps. DevOps is not a technology or a tool. Still, it is a culture, practice, or movement that emphasizes the communication and collaboration of both developers and operations teams while working on the automation of software infrastructure and delivery process. But the question that arises is what steps you must take to become a DevOps Engineer? Well, to answer it, the simple solution is DevOps Engineer Certification. But before that, let us dive into the process step-by-step and understand how you can practice DevOps effectively.

Organizations need people who are collaborative for adopting DevOps practices. They need people who are willing to change and are comfortable in adopting new technologies. Considering a tooling perspective, a good understanding of automation tools, systems, CI tools, networking, version control systems, and having experience in using various project management tools will help in paving the path for the adoption of DevOps.

The bitter fact is that you must understand that DevOps is not just for some systems or developers engineers. It is for anyone passionate about evolving technologies, practices, and willingness to work in a collaborative environment and work on automation to make everyone’s life better and easier. Here are a few steps that you can follow to land on a DevOps engineer profile:

Know the DevOps Culture

Before becoming a DevOps engineer, the first and foremost thing to do is understand the DevOps culture. DevOps is all about various teams working together to accomplish a common goal. We need DevOps to reduce the blame game in the company and establish a culture between different IT teams for better communication and hence better outcomes. Also, once you start practicing DevOps culture and understand it completely, you will realize that “Automation and CI/CD is DevOps” is a myth. With DevOps master certification, you can understand it better.

Learn the Unix System

We are living in an era where life without Linux or Unix systems is close to impossible. You should understand these systems better and know about various Linux distributions and their highly used workings (such as Ubuntu, RHEL, CoreOS, Centos, etc.). In the world of Unix, it’s all about terminal and less about GUI. So, start getting your hands dirty with the terminals of Unix systems.

Understand the Infrastructure and Working of Components

The primary building block of an organization is nothing but its infrastructure. It can either be on the on-premise data center or the cloud. Having an overview and understanding of the infrastructure components is a must for an individual aspiring to work in or practice in a DevOps environment. It will help gain a basic knowledge of networking, storage, single sign-on, load balancers, security, VPN, security, etc.

Get Cloud Certification

When it is about getting certification, don’t try to give the exam for the sake of a certificate, but do it only when you mean it. It will add significant value to your resume and will also help in boosting your knowledge. It won’t just be helpful for you but also for the organization to show that they have certified cloud engineers on board. You can pick one public cloud and gain knowledge of its core infrastructure services. To understand how it works in a better manner, do hands-on work on all the core services. You can get a DevOps Master certification, which can help you learn this better.

Learn Automating

These days no servers are created manually. It’s all about automation, and automation has become a crucial aspect of every company. These days right from application configuration, to provisioning servers, to deployment, everything must be automated, and hence you must spread your arms across various DevOps tools that meet your requirement. For example – Vagrant, Minikube, Docker Desktop, Minishift, CLIs, Terraform, Packer, Saltstack, Ansible, Puppet, Chef, etc.

Distributed Systems, Containers, & Service Mesh

The adoption of containers is increasing as the days are passing by. It might be a case that the organization you are working in doesn’t work using containers now. But, it is always preferred to have hands-on knowledge of different container technology, for example, docker. It provides a competitive edge among others. On completing docker, you can also try orchestration tools and clustering like Docker Swarm, Kubernetes, etc. The platforms mentioned are best suited for architecture based on microservice.

Logging and Monitoring

The fundamental aspects of infrastructure are monitoring and logging. Almost all the apps deployed in the infrastructure produce metrics and logs. Depending on the design and architecture, records are stored in the logging infrastructure. All the companies will have a monitoring and logging infrastructure. The most widely used logging stacks are ELK and Splunk. There are also a few SaaS that provide the logging infrastructure, for example, Loggly.

DevSecOps

You must also understand the best security practices. DevSecOps is another domain that works on integrating security practices in every stage of the DevOps. Especially in a cloud environment, the most common attack is crypto mining. Usually, this happens in an organization when they don’t maintain the cloud access secrets properly. This helps the hackers to get access to it easily.

Learn Scripting and Coding

To collaborate better, you need to understand the Developers’ world better. And for doing so, you need to understand the development process of an organization. So, understanding APIs, programming, etc., will help you collaborate better and troubleshoot things.

Learn Git

Having version control for everything you do is essential. It won’t take much of your time to learn, and also, it is crucial to understand the git operations anyway. You can take up some time to learn the tutorials available online. And, of course, Git is always the best version control tool you can ask for.

Conclusion

DevOps is a promising career path with a flourishing future growth. DevOps Engineer Course can help an individual in making a great start to their journey in DevOps.

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