Tablet computer Asus Transformer Prime TF101, released more than ten years ago, at one time became a revolutionary device that combined the power of the Tegra 2 processor and a docking station with a keyboard. However, today the standard Android 3.2 Honeycomb or 4.0 Ice Cream Sandwich operating system with which it was shipped is no longer capable of correctly displaying modern web pages and running current applications. Users are often looking for a way to extend the life of this gadget by installing more recent versions of the operating system.
The process of upgrading the software on this device has its own characteristics related to the processor architecture and memory limitations. Updating Asus TF101 possibly through the official route up to Android 4.1.1, and with the help of third-party developers – up to Android 4.2.2 Jelly Bean. This is a limit beyond which it is technically impossible to rise without loss of performance, but even this leap significantly improves software compatibility.
Before proceeding with any manipulations, you need to clearly understand the risks and prepare tools. Official support for the device has been discontinued by Asus, so all updates above version 4.1.1 are performed by the user at his own peril and risk. In this article we will analyze safe methods for installing updates that will allow your the tablet remains functional in modern conditions.
Preparing the device and checking the current version
The upgrade process should begin with a thorough diagnosis of the current state of the system. Go to the menu Settings → About the tablet and look at the build number. If you have a version lower than 9.2.1.10 installed, then the first priority is to update to this version using standard means, since newer firmware may not work on older versions of the bootloader.
It is important to ensure a stable connection to the Wi-Fi network and charge the battery to at least 80%. The firmware process is power-intensive, and a sudden power outage can cause the memory module to malfunction. Also free up internal memory: downloading and unpacking update packages may require 500 MB to 1 GB of free space.
Back up all important data. When updating through the system menu, the data is usually saved, but when switching to custom firmware or in case of failures, complete loss of information is possible. Copy photos, documents and contacts to cloud storage or to a microSD memory card.
☑️ Ready for update
Make sure USB debugging is enabled on your device if you plan to use your computer to transfer files. This option is located in the Settings → For Developerssection. If there is no "For Developers" item, click seven times in a row on the build number in the "About Tablet" menu to activate the hidden menu.
Official update method via OTA (over the air)
The easiest and safest way to upgrade the operating system is to use the built-in OTA mechanism (Over-The-Air). Asus TF101 can independently search for new software versions on the manufacturer’s servers. To do this, connect to Wi-Fi and go to Settings → About tablet → System update.
The system will contact the server and offer an available update. If an offer has been received, click "Download". Once the download is complete, the device will prompt you to install the package and reboot. This method guarantees the installation of a certified version of Android 4.1.1, which is stable and free of critical errors.
⚠️ Attention: Asus servers for very old devices may be unstable or disabled. If the tablet says “No updates found,” this does not mean that they do not exist - the server may be temporarily unavailable.
In some cases, an update may not arrive due to a changed system date. Make sure that your settings Date and time are set to the correct year and time zone. An incorrect date may block the SSL connection to the update server, and the tablet will not be able to check for new firmware.
If the OTA update is interrupted at the 30-40% stage, try clearing the "System updates" application cache in the Settings → Applications → All applications section.
Manual installation of the update via Recovery Mode
If the automatic search does not produce results, you can update Asus TF101 manually by downloading the firmware file from the official support site. You will need a file with the extension .zip (for example, TF101-WW-9.2.1.10-user.zip). This file must be placed in the root of the tablet's internal memory or on a microSD card.
After copying the file, turn off the tablet completely. Then hold down the Volume Up and Power buttons at the same time. Hold them until the Asus logo appears, then release the power button while continuing to hold the volume until a menu with a choice of actions appears.
In the menu that appears, select Apply update from SD card (or Internal Storage, depending on where you put the file). Find your zip archive and confirm installation. The process will take a few minutes, after which the device will reboot with the new version of the software.
Installing custom firmware (CyanogenMod and others)
For those for whom the official version of Android 4.1.1 is not enough, it is possible to install unofficial assemblies, such as CyanogenMod 10.1 based on Android 4.2.2. This requires obtaining superuser rights (Root) and installing a modified bootloader (Bootloader). This method is intended for experienced users.
The first step is to unlock the bootloader. For Transformer Prime there is a utility unlocked-rootthat allows you to remove the block. After this, you need to install custom recovery, for example, TWRP or CWM, through which the new system will be installed.
| Parameter | Official firmware | Custom firmware (CM10.1) |
|---|---|---|
| Version Android | 4.0.3 - 4.1.1 | 4.2.2 |
| Stability | High | Average (bugs are possible) |
| Google Play support | Full | Requires installation GApps |
| Installation complexity | Low | High |
When installing custom firmware, you must install the Google Apps package (GApps) separately, since Google services are not present in pure CyanogenMod builds due to licensing restrictions. Look for an archive gapps-jb-4.2.2that is compatible with the architecture of your device.
Risks of custom firmware
Installing unofficial software may result in the camera, Bluetooth or docking station not working. Always read the comments on the firmware before installation.
Solving problems when updating
In the process of upgrading software, users Asus TF101 often encounter typical errors. One of the most common is “bootloop”, when the tablet endlessly reboots at the Asus logo. This often happens if a full reset (Wipe) was not performed before installing a new version of the system.
If the tablet freezes and does not respond to touches, try a combination of buttons to force a reboot: hold down the power button and the volume up button at the same time for 10-15 seconds. As a last resort, waiting until the battery is completely discharged will help, after which the device needs to be charged.
⚠️ Attention: If after the update the touch screen or Wi-Fi drivers stopped working, most likely you installed firmware that was not intended for your revision of the motherboard. In this case, you need to return to the factory version.
Another problem may be lack of space in the system partition. Before installing heavy firmware, it is recommended to clear the Dalvik cache through the Recovery menu. Select item Wipe cache partition i Dalvik cache, this will free up space and eliminate conflicts of old system files.
90% of update problems are solved by a full data reset (Factory Reset) before installing the new firmware.
Optimization of work after updates
After successfully installing a new version of Android 4.1 or 4.2, the system may work slowly in the first hours. This happens because background processes are indexing files and optimizing databases. Let the tablet sit on the charger for about 30-60 minutes without active use.
To speed up work Asus TF101 on new versions of Android, it is recommended to disable unnecessary animation. In the menu For developers find the items “Window animation”, “Transition animation” and set them to “No animation” or “0.5x”. This will visually speed up the interface.
It is also worth removing system applications that you do not use if you have root access. Using lightweight alternatives to heavy applications (for example, a lightweight browser instead of full Chrome) will significantly extend the battery life of the device with its elderly battery.
Is it possible to update the Asus TF101 to Android 5.0 or higher?
No, the Nvidia Tegra 2 processor has architectural limitations that do not allow running Android 5.0 Lollipop and higher with acceptable performance. The maximum possible version is Android 4.2.2.
What to do if the tablet says "Update failed"?
Check the integrity of the downloaded firmware file (does the checksum match). Also make sure that the file is in the root of the memory, and not in a folder, and the file name does not contain Cyrillic characters.
Will the warranty be reset after the update?
The Asus TF101 device is long out of warranty in any case. However, installing custom firmware is a software modification that formally deprives you of the right to free service, if it were still provided.
Do you need a computer for the update?
For an official update via OTA or Recovery, you do not need a computer. It will only be needed if you decide to flash the device via ADB commands or if the system is completely “bricked” and requires a low-level recovery.