Nice tutorial! But I had a problem and I need help please. I followed all of your instructions, but when i was supposed to install the correct drivers, the computer did it before me. It didn’t showed the message ‘Device driver software was not successfully installed’ like you did, it actually installed the drivers successfully and when I tried to install the ViperMod’s drivers like you do, and it told me that ‘the best driver software for your device is already installed, windows has determined the driver software for your device is up to date’.
Windows 7 extended support ends one year from today. Im getting an ASUS Eee Pad Transformer TF101 on Thursday and was wondering if anyone has one and if so, what is their opinion on it. How to Install Android Nougat on Asus Transformer TF101 (Android 7.1.1/CM14.1) David Cooper. How to Install New ROM on Eee Pad Transformer! - Duration: 8:28. Max Lee 37,697 views.
And I was afraid to continue, thus this problem might interfere me in the rest of the downgrade. What should I do? Thank you, and sorry for my bad English.
Hey, thanks dude. This process worked for me on the second attempt after actually bricking my TF101 the first time around.:( However it was totally my own fault that I bricked the TF101 because I wrongly assumed after the first reboot that something had gone amiss when the TF101 ended up at the pre-downgrade desktop.so unpluged it. I didn’t realise that was supposed to happen and that I needed to just leave it a little longer. This is the section I should have taken more notice of: “DO NOT DISCONNECT YOUR TABLET FROM YOUR COMPUTER DURING THIS PROCESS! Disconnecting your tablet during the downgrade or rooting process can break your tablet and turn it into a unless (but very expensive) brick!” For anyone else, if you inadvertantly brick your device (mine was actually boot looping), then there is a really useful thread here to unbrick the TF101: The comments 7 and 9 from ‘dreamboxuser’ are what got my TF101 working again.
Thanks again OP. Excellent instructions!
Very clear and concise. This worked fine on my TF201 even with it being unlocked using the official from Asus. I also rooted using the newer version 4.6 and it worked fine. That file can be found here,. Everything worked great and I am now rooted on 9.4.2.15.
I also protected root with OTA rootkeeper. However, it has been 3 days and the OTA firmware update to.21 is not coming even when I check. I grabbed the file from Asus support online and upgraded. However, I went to restore root from rootkeeper and it would not work. I ended up redoing the instructions and am back to rooted on 9.4.2.15.
Firstly, I want to thank you for writing such a detailed guide as this one. Now the problem: I have a TF101 and I rooted it 1 month ago, but I lost it when I updated to.21 because I forgot to install the OTA RootKeeper. So at the moment my TF101 is unrooted and its FW is WWepad-9.2.1.3 (I didn’t update to.24 yet, even though the system keeps saying that there’s an update). I tried downgrading twice following all the instructions in this guide, even triple checking them, but step 3 in viperMOD, “Moving FW data (this will take 3-10 min)”, lasts only 10 seconds, then the tablet reboots without downgrading.
However, since I already rooted it before, the drivers are already installed and when I connect the Transformer to the PC it is automaticaly recognized as a storage device and is listed as “ASUS Android Composite ADB Interface” under “ASUS Android Deviced” in Device Manager, so I didn’t install any new drivers. I don’t know what to do What am I doing wrong? Thank you again and I hope you can help me:) Sorry for the bad english. Prachtige uitleg. Heel duidelijk.
Ik zit alleen met een probleem. Ik kan mijn root acces niet terug krijgen nadat ik hem heb geupdate naar.21 Ik weet 100% zeker dat ik hem op.15 geroot heb en dat dat ook gelukt is. Ik weet ook 100% zeker dat ik een back up van mijn root heb via rootkeeper. Maar wanneer ik hem geupdate heb naar.21 en ik ga terug naar rootkeeper om hem terug te halen. Dan krijg ik een heel ander schermpje. Ik kan namelijk de volgende knoppen indrukken: protect root, backup root, restore root, delete su backup. Ook worden de volgende vakjes weergeven: divice rooted, root permission granted, filesystem supports root protection(aangevinkt), Protected su copy available.
(er is er dus maar 1 aangevinkt) Dus ik druk op restore root en ik krijg de melding root restored(er gebeurt verder niks). Ik kijk vervolgens of ik mijn root inderdaad terug heb maar nee. Geen root toegang. Ook de vakjes zijn niet aangevinkt. Weet jij misschien waar het probleem ligt?
Ik kom er namelijk niet uit. Heb alle stappen meerdere keren doorgenomen maar elke keer kom ik op het zelfde resultaat. I tried this method with an Asus transformer TF101G firmware 9.2.2.4. It did downgrade me to 9.2.1.11. I used the recommended version above. I had boot loops until I did a wipe.
Then I found the 3g disappeared and would not work at all. Perhaps the blob is for a tf101 and not a tf101g?
I recovered by putting 9.2.2.3 zip file (downloaded from Asus) on the sdcard then clicked install and I am back to normal. I will try again but with a different blob as I would not like to lose the 3g. Thanks anyway, Rob. Hey, YOU DA MAN! (Assuming of course that you are a man; if not, I sincerely apologise!). I bought my TF201 recently in Hong Kong and very foolishly allowed it to upgrade from TW 9.4.2.15 to TW 9.4.2.21, before I realised that the new firmware version cannot (currently) be rooted.
So finding your instructions after a long search of the web was absolutely fantastic. I initially had trouble finding a TW 9.4.2.15 build to downgrade to (I didn’t want to risk using the WW version), but I eventually found it here: After finally getting all the required files downloaded, I then proceeded to follow your instructions. The only place I got stuck was when I omitted to install the correct driver from the ‘ viperMOD Primer Tool v4.5 – Modded by bpearv3 Drivers Android’ directory (since I’d already got the standard Asus driver installed).
Once I fixed that, everything went smoothly. So the great news is that your instructions do work perfectly, as long as you carefully read them and don’t try to rush things or skip over any steps;-). Now I love my Transformer Prime even more, because I can get the full benefit of great apps such as Titanium Backup and Avast Mobile Security. Thank you again for taking the time to share these instructions for the benefit of the Transformer community – your efforts really are very much appreciated! Hey xyz25, what you described here sounds very similar to the problem I initially had (see my post above). The mistake I’d made was not to install the special Windows driver from the viperMOD Primer Tool package before I tried to downgrade. I was using the standard Asus driver that I’d previously installed – after I uninstalled it and installed the viperMOD version the ‘moving fw date’ process happened properly (it took some time rather than just a couple of seconds).
Are you sure you have correctly installed the driver from the viperMOD Primer Tool package? Thank you thank you very much!! Your method is THE method!! With all due respect to other “superbrain” xda developers and friends, i have tryed so many methods untils yours. I was wandering on the Net looking for a kind of chimaera when i felt down on your tutorial. My tf101 was under 9.2.1.24 since last update and the exploit was closed in the hardiest way.
Then i followed step by step your tutorial and now, i can say. I am the king of the world!!! Thanx to you and to all of android real fans!! I have the TF101 model with build number USepad-9.2.1.27 it will not downgrade, therefore will not accept the rooting. I have followed all the steps, even turned off Asus Sync on the PC as well stopped all the apps running in the background on the tablet but will still not take. Have installed all the correct drivers even tried with the drivers from Asus’s site, still no luck. Does Asus Sync need to be uninstalled from the PC entirely to work?
![Tf201 Tf201](http://static.trustedreviews.com/94%7C0000216de%7Cd2f0_IMG-2444s.jpg)
ANy suggestions or ideas. Or any other ways to root this build maybe. This post worked like a charm on the us tf201 with only one exception: after downgrading, obtaining root and protecting it with ota rootkeeper the device no longer sees the ota update for.21 (or.28). It just keeps saying no update available. It’s been 2 days and still no ota notification.
I have tried with the.15 us blob file in the internal memory and without it. Nothing seems to help. There are many reports about this problem here on this page and on xda but i’m not seeing any real solutions to this problem. The device does correctly show the serial number, so it isn’t related to that little problem either. Any real solutions out there?
Thanks for this very clear guide. Firmware of my Transformer TF101 is at IML74K.WWepad-9.2.1.5. The steps I took: – Downgrade to 9.2.1.11 (20120221) – Rooting – Upgrading to 9.2.1.24 (20120503) – Regaining root right – Upgrading to 9.2.1.27 (20120615) – Regaining root right Note 1: The app ‘com.asus.pcsynclauncher’ is called ‘ASUS Sync’ on firmware 9.2.1.27. After downgrade the app is called ‘com.asus.pcsynclauncher’ again. The app is standing below in the list noted as disabled, despite this fact I forced closed the program. Note 2: After regaining root rights the option ‘root permission granted’ is not on, but if you close the app and go back the option is on.
Greetz en de groeten.