Why can't we downgrade? - Transformer TF300T Q&A, Help & Troubleshooting

Hi
I have looked on the forums and allot off people say in the tf300 forums that we cant downgrade from jb to ics. But on the tf201 and tf700 they can. They just change the update file name and downgrade.from that update file. Why cant we do it that way? I can't find my awnser in the forums thats why i ask it.
Thanks
Sorry for my bad English Sent From My TF300

xSvenHD said:
Hi
I have looked on the forums and allot off people say in the tf300 forums that we cant downgrade from jb to ics. But on the tf201 and tf700 they can. They just change the update file name and downgrade.from that update file. Why cant we do it that way? I can't find my awnser in the forums thats why i ask it.
Thanks
Sorry for my bad English Sent From My TF300
Click to expand...
Click to collapse
The simple answer is it won't work with currently known methods.
I have used the thread you mention but using tf300 ics zips (not tf700 zips ) on boot you get a red message about incorrect bootloader. In fact I get that message with every method I have tried to downgrade.
Be safe!
Save yourself the time and trouble and try to be satisfied with the bootloader you currently have. I expect this issue will be overcome in the future.
The only thing I feel I am missing is NVFlash and that will probably come with the fall of the jb bootloader.

Related

[q] b70/b80 nvflash version?

I see that some developers have the newest NVFLASH for the B70 and B80 models.
1. What is the version number?
2. If this is one of the best selling tablets why is not more support or more outcries seeking NVFLASH?
3. What would one do if the tablet needed to be reflashed? Would ASUS expect us to send it back? They wouldnt help us over the phone?
I hope to just get answers and no comentary on the questions - this is the Q&A forum, right.
P.S. It would be great if if all threads would be cleansed of unnecessary comments that serve no purpose. Sometimes threads berate the user and have nothing to do with the original post. If a developer posts a kernel or rom with instructions and some has a problem because they did not follow instructions then that should be considered a useless post. If the instructions needed correcting then that could occur stating they were updated and then the having problems post could be deleted. It sure would make threads more useful.
This is considered a useless post because it has been asked and answered hundreds of times and is itself adding to the clutter of worthless threads. Why not find 1 of the numerous B70,B80 threads and post in ther instead of adding yet another thread that will show up in a search with the 100 other threads
searched eveywhere for the version number and dont see it. Your response is what I am talking about. Wouldnt it be more constructive to provide a answer instead of berating a user? Wouldnt't be great if threads had just solutions?
Wouldn't it be great if you actuaslly followed the rules of xda and used the search button? Then I wouldn't have to berate you for beeing a worthless n00b
1) b70+s does not require a newer version of nvflash. b70s have a different key. no one has that key yet.
2) nvflash (at least in terms of the TF) is not intended to be a user tool. so whatever outcry you're looking for for the new keys are not gonna yield you any results.
3) the way the system partition is protected, it's not typical you would need to reflash a factory rom. the only way to screw it up is through a failed update. and typically reflashing the update would fix that. so it's not typical (under normal use...that means no custom roms, etc.) that you would need nvflash to fix your TF. and if you do need it, yes, you would have to send it back to Asus.
Sent from my Transformer TF101 using Tapatalk
Is any nvflsh version released for B80s TF101??
Thanks in advance
Bratsaki said:
Is any nvflsh version released for B80s TF101??
Thanks in advance
Click to expand...
Click to collapse
No, NVFlash is still not compatible with B80 or any SBK v2 devices.
B70+ tablets can already be rooted using nachoroot and are able to run custom roms, I'm doing just that myself right now. The only thing we are missing out on is the added level of brick protection that nvflash gives.
Can i install linux on my B80 tablet??? I want to use a Plasma active MMC image... Will it be installed ?
Bratsaki said:
Can i install linux on my B80 tablet??? I want to use a Plasma active MMC image... Will it be installed ?
Click to expand...
Click to collapse
No, eMMC repartitioning requires nvflash. And I applaud you for bumping a 5 month old thread instead of reading some more of the results of your search that you most likely used to find this thread.
Sent from my HTC Sensation Z710e using xda premium

How to return to stock?

I bought a used transformer this past weekend and its already running prime overclocked to 1.6ghz. My question is how do I return to stock so I can install the icecream sandwich update when it become available? Every other android device I've owned has had a one click restore of some soft but I can't seem to.find anything here like that. If someone could please point me in the right direction it would be greatly appreciated.
Sent from my MB860 using XDA App
i believe first everyone will tell you to search extensively about your topic and the answers are available.
i will however help ya out with the specifics of what your lookin for.(and just so you know the devs will probably get you ICS before asus does or very shortly thereafter, so you might want to consider your options once you do your research)
your going to wanna look up the differences in device serial number versions the pre b70 versions and the b70+ versions. look into the sbkv1 and sbkv2(secure boot key). its very likely yours is a pre b70 which for now is probably good. the later versions have a locked bootloader and the more powerful tool nvflash doesnt work currently.
i belive yours is older (but be sure!!!) and should be able to utilize the nvflash method of unrooting/unbricking. this is what you wanna reasearch....
im in the earning process myself and want to better the transformer community anyway i can and im a firm believer that knowledge is power...............but also comes with responsibility
if you have questions by all means ask but you really should spend some time researching your device and this community and exhaust your intelligence before calling on someone elses....i say this only because many more experienced members will really get on you for asking questions you can answer your self... youve gotten this far your on the right track.
beyond that i will glady help anyone i can and im learning as well so im hungry for the info i guess...
Anyone see what im saying as wromg or misguided plz let me know....
Yeah mine is the original purchased in may.
Sent from my MB860 using XDA App
Hello,
I agree with the question. How can I return to the Stock ROM?
At the Moment i have the Revolution HD on mein TF.
I search, but i cant find the answer
thx for your help
Heck the easiest way I know of to flash to stock is nvflash a stock ROM. Just did that to send back my TF for an RMA, No trouble at all, Snag a stock ROM from Asus website (or here on XDA). Search nvflash and you'll be good to go, Very straightforward process, really.
Sent from my Transformer TF101 using xda premium
Thanks for your answer.
I rootet my Pad with Brks_rootkit_v7.1.
I think this program was made a backup from original stock rom befor i rootet my pad. Is this correct?
Can i use Brks_rootkit_v7.1 to become to original stock?
thx
beagle5
Yep, if you have a backup from your stock made by brks rootkit 7.1 then you can put your tablet back to stock rom.
If you don't have a backup stock rom, then go to tabletroms.com and search in the forum for asus transformer nvflash unbricking tools, this is a tool from zerofeel. This solutions works really well and I use it to keep getting back to original stock rom, before I put a new rom and kernel on my tablet.
Good-luck with it and remember use it at your own risk.
But nvflash doesn't work with b70+, is there a guide to go back without nvflash? Besides that, i got the latest DE Firmware and i want to have a possibility to go back to stock before i root..just in case...is there any way?
I think the answer is here http://forum.xda-developers.com/showpost.php?p=19339153&postcount=36
(did not try this)

So I just picked up an Asus EEE Transformer..

Running Android ICS 4.0.3 and Build Number IMLL74K.US_epad-9.2.1.21-20120413
Every method of rooting I find has nothing to do with ICS, could someone help me on my marry way, I would really appreciate it. I just want to do a basic root, so that I can maybe change the kernal and pep up the CPU a bit.
Help would be rewarded :-D
ViperMod in the Prime form works for all but the latest firmware otherwise you have to downgrade first
And for future reference search first and questions go in Q&A not themes and apps
mrevankyle said:
ViperMod in the Prime form works for all but the latest firmware otherwise you have to downgrade first
And for future reference search first and questions go in Q&A not themes and apps
Click to expand...
Click to collapse
Sorry about posting in the wrong forum, I should know better, but I have tried downgrading and it does not work, it seems like once you are on 4.0.3 you are stuck. I just tried this method right here and got nowhere, it says nothing about an update being available...
http://forum.xda-developers.com/showthread.php?t=1106587
rbgCODE said:
Sorry about posting in the wrong forum, I should know better, but I have tried downgrading and it does not work, it seems like once you are on 4.0.3 you are stuck. I just tried this method right here and got nowhere, it says nothing about an update being available...
http://forum.xda-developers.com/showthread.php?t=1106587
Click to expand...
Click to collapse
Take a look at this thread.
http://forum.xda-developers.com/showthread.php?p=25385687
baseballfanz said:
Take a look at this thread.
http://forum.xda-developers.com/showthread.php?p=25385687
Click to expand...
Click to collapse
Thanks and I did thank you, I am trying this now, I am guessing I want ICS .11, since that one is still rootable. I am trying it now, I cant believe I got this it was already on 4.03. Why do people upgrade just to upgrade... jerks.
I will let you know how this goes.
I think .17 is rootable with ViperMod also or you could just do Wolf's method 3 which let you install the recovery blob via abd and flashing the su afterward with cwm
Yeah, I actually went with the .11 Blog backup, and then rooted it without any problem at all, now just what to do, what to do... I do appreciate everyone who helped out, thanks much.

I am a NOOB, Can anyone willing to writing a guide of how to install custom ROM?

I am a NOOB and I know nothing about how to unlock/ROOT the device
I really want to install the CleanROM but the installation guide is too simple
Can someone tell me how to do this step by step? with picture/youtube?
I know unlocking the device will loose my WARRANTY
So, I don't really want to brick my TF700 due to my noobness..........
Thank you X1000000000000000
noobwow said:
I am a NOOB and I know nothing about how to unlock/ROOT the device
I really want to install the CleanROM but the installation guide is too simple
Can someone tell me how to do this step by step? with picture/youtube?
I know unlocking the device will loose my WARRANTY
So, I don't really want to brick my TF700 due to my noobness..........
Thank you X1000000000000000
Click to expand...
Click to collapse
You didn't even look in the Development section before you made this thread or did you (aside from the CleanROM thread)?
Hint: take a look at the pinned/sticky threads.
Wrong place
Switch to Q&A
Ask there
noobwow said:
I am a NOOB and I know nothing about how to unlock/ROOT the device
I really want to install the CleanROM but the installation guide is too simple
Can someone tell me how to do this step by step? with picture/youtube?
I know unlocking the device will loose my WARRANTY
So, I don't really want to brick my TF700 due to my noobness..........
Thank you X1000000000000000
Click to expand...
Click to collapse
Check this link out. If you already on JB the latest version, then you just skip section 1 and start with section 2.
http://forum.xda-developers.com/showthread.php?t=1938129
Wrong forum and there are already stickies explaining how to do what you asked. Look and you will find.
buhohitr said:
Check this link out. If you already on JB the latest version, then you just skip section 1 and start with section 2.
http://forum.xda-developers.com/showthread.php?t=1938129
Click to expand...
Click to collapse
That's what I used. Couldn't have made it any more simple.
noobwow said:
I am a NOOB [...] but the installation guide is too simple [...]
X1000000000000000
Click to expand...
Click to collapse
cmdrdredd said:
That's what I used. Couldn't have made it any more simple.
Click to expand...
Click to collapse
We're all on the wrong track here: the OP said the guide was too simple already -- we therefore should set ourselves to the task of making more complicated. Knowing both myself and the rest of you, this should come rather naturally, so what's taking you so long? MAKE IT HARD ALREADY!
J/K -- read the stickies. In my opinion, if you can't do it with all the info provided --which is more than enough --then read and learn a LOT more on the basics of Android before you even attempt this (suggested topic would include at least recoveries, bootloaders, nandroid backups, and, obviously, rooting). You run a significant chance to end up with an expensive paperweight if you don't. If you do not feel comfortable yet, play around with your 700 for a bit, try rooting next (little harm done, little risk involved) and then move on to the heavier stuff.
I thought I was somewhat tech savvy ... not troo however!
In order to flash a ROM which comes as second nature to most Androidians I was at a total loss initially.
Yet with concentration, YouTube, XDA, Google Play and a slowdown of tipping the wineglass I was able to crawl from the sandpit.
This has all lead to a new mountain to climb.
There's a few things I find tough like fastboot for instance and that pesky Titanium Fup , yet I'll absorb those eventually.
Dealing with Android and it's many options has definitely been a reading experience.
Good luck to all who dive in!
No doubt noobwow is struggling to find his thread now since it has been moved. :silly:
Let's hope he makes his way into this forum and recognises it.
sbdags said:
No doubt noobwow is struggling to find his thread now since it has been moved. :silly:
Let's hope he makes his way into this forum and recognises it.
Click to expand...
Click to collapse
Golly I'm a noobster and I stumbled on it...har-har-har
sbdags said:
No doubt noobwow is struggling to find his thread now since it has been moved. :silly:
Let's hope he makes his way into this forum and recognises it.
Click to expand...
Click to collapse
Probably not until we've had another few days of poking fun at some innocent newbie for a bit. Poor guy still hasn't solved his problem, probably.
ar.............
I found my post!
I just had problem on the "pre-requise" in the installation guide
I have already had JB on my TF700 and I knew I can just start from session 2
but I would appreciate if someone can teach me how to unlock and get the custom recovery
I know unlock tool can be downloaded from ASUS website
But what bother me is the custom recovery
:fingers-crossed:
noobwow said:
ar.............
I found my post!
I just had problem on the "pre-requise" in the installation guide
I have already had JB on my TF700 and I knew I can just start from session 2
but I would appreciate if someone can teach me how to unlock and get the custom recovery
I know unlock tool can be downloaded from ASUS website
But what bother me is the custom recovery
:fingers-crossed:
Click to expand...
Click to collapse
go here http://forum.xda-developers.com/showthread.php?t=1795156 to download the unlock apk tool (use second link). Launch the app and just follow the on screen direction, that's it. NOTE: currently Asus is having issue with their server, so the tool will failed. You just keep trying until it works. Once your device is unlock just follow the link and continue with section 2. Remember, after you install custom recovery (TWRP), you just boot into recovery and flash the Cleanrom. Cleanrom already rooted so you don't have to root your device.
Heck if did the ROM flash I'm pretty sure most anyone could figure out how to do it.
Linux\Android is a whole different animal to me so I've been studying...even bought a book about it
buhohitr said:
go here http://forum.xda-developers.com/showthread.php?t=1795156 to download the unlock apk tool (use second link). Launch the app and just follow the on screen direction, that's it. NOTE: currently Asus is having issue with their server, so the tool will failed. You just keep trying until it works. Once your device is unlock just follow the link and continue with section 2. Remember, after you install custom recovery (TWRP), you just boot into recovery and flash the Cleanrom. Cleanrom already rooted so you don't have to root your device.
Click to expand...
Click to collapse
Thanks!
Now I am just waiting for my SquarTrade Warranty recieve my amazon receipt and confirm my warranty works.
Also, wanna have someone confirm they cover unlock device.
then i will install the cleanrom.
the stock rom just drive me crazy.
PS. I ordered Surface RT for my little brother.
:highfive:
Maybe you should start with a cheaper toy
Sent from my ASUS Transformer Pad TF700T using xda premium
maverickmarc said:
Maybe you should start with a cheaper toy
Sent from my ASUS Transformer Pad TF700T using xda premium
Click to expand...
Click to collapse
That would've been very sound advice about two to three weeks ago.

[Q] How to unlock TF700 on JB

Hi everyone,
I've been slowly easing myself into the world of TF700 mods. I've been reading up A LOT on how to root, unlock, flash custom ROMs, etc. So far, I've started out by simply rooting my TF700. I figure this is a good way to get a feel for all this stuff without taking too much of a risk. After rooting, I updated to the latest JB via OTA, while keeping root (using OTA Rootkeeper).
But as I get more and more comfortable, I'm wanting more and more to get into flashing of custom ROMs. My understanding is that the bootloader needs to be unlocked to do this. The problem is, after scouring the internet, I've been unable to figure out how to unlock my tablet while on JB. Can anyone point me to an explanation of how to do this? Or will I HAVE to revert to ICS in order to do this (as I had to in order to root my JB device in the first place)?
Thanks a lot!
You have to use a different search engine, my friend!
The answers to your questions are right in this forum, and the relevant threads are at the top in this General section as stickies
Check out the Official Asus TF700 all-in-one thread by Pretoriano80 and also his index of tools (you'll need those later).
While you're at it start reading the CleanRom Inheritance Help thread by Thibor69 and in general: start browsing here, get familiar with the lingo, use the search function if you're interested in a particular topic (although - I have to admit the forum search engine su..., ahem - could be better. Using Google search and selecting the xda threads showing there is what I usually do).
Well, and then, if you really, really have searched high and low, far and wide, and cannot find the answer to your question, there are many, many very knowledgeable people here just dying to help you out
Welcome to the club...
Oh! And to answer your question: You have to use the Asus Unlock tool, you can use it in JB, no reason to revert to ICS.
If you successfully rooted you won't find the process to unlock, install a custom recovery and flash a custom rom too challenging.
Loosing the warranty sucks, yes. But only a custom rom will unlock the full potential of this tablet.
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
Thanks very much for the suggestions. I've definitely read the all-in-one thread ad noseum (which is how I figured out how to root my device). The thing that I was not able to find an answer to anywhere was whether the Asus unlock tool would work on JB. In fact, all the notices I came across indicated that it would only work with ICS. This is why I was confused as to how people on JB could still unlock their TF700 without reverting to ICS.
So you're saying that, while rooted and on JB (10.4.4.25), the standard Asus TF700 unlock tool will work? Is this generally accepted?
Also, thanks for the suggestion to check out the CleanRom Inheritance Help thread - this will probably be my next in the education process.
Thanks again... really appreciate it!
joshnl said:
Thanks very much for the suggestions. I've definitely read the all-in-one thread ad noseum (which is how I figured out how to root my device). The thing that I was not able to find an answer to anywhere was whether the Asus unlock tool would work on JB. In fact, all the notices I came across indicated that it would only work with ICS. This is why I was confused as to how people on JB could still unlock their TF700 without reverting to ICS.
So you're saying that, while rooted and on JB (10.4.4.25), the standard Asus TF700 unlock tool will work? Is this generally accepted?
Also, thanks for the suggestion to check out the CleanRom Inheritance Help thread - this will probably be my next in the education process.
Thanks again... really appreciate it!
Click to expand...
Click to collapse
Yes, the ASUS provided unlock tool from their own very website will work!
I myself just used in on Saturday. I just rooted my Infinity last week with a great success using the CROMI and I love it!
Follow those instructions to the letter. However, I did find that the same software that is used in the youtube video was a bit easier to understand and navigate through. I'm a visual person, so I was doing it step by step with the video. I didn't want to brick a 2 month old device.
Good luck!
Okay. Interesting that Asus have not updated their instructions to indicate that the unlock tool also works for JB - the instructions on the Asus website clearly state that it only work on ICS.
Splitz: Sorry to belabour the subject, but did you unlock your TF700T while it had JB installed on it?
Has Asus just not updated their instructions?
Thanks!
joshnl said:
Splitz: Sorry to belabour the subject, but did you unlock your TF700T while it had JB installed on it?
Has Asus just not updated their instructions?
Thanks!
Click to expand...
Click to collapse
Yes, I unlocked it using the Asus tool with JB installed.
I saw a post around here somewhere (In the DEV thread) that confirmed the tool works with both ICS bootloader as well as JB which is why I risked it.
I'm going to assume that ASUS just won't officially say it will unlock the JB bootloader.
Actually, it has been mentioned quite a few times that the unlock tool works on JB as well.
MartyHulskemper said:
Actually, it has been mentioned quite a few times that the unlock tool works on JB as well.
Click to expand...
Click to collapse
Ya, I've now come across some of these other mentions through searching for info on tangential topics. Sorry if I asked a redundant question here - I did try my best to answer it myself before doing so, however.
Thanks for everyone's help.
Sorry to hijack the thread but I was wondering if this will work on JB 4.1.1 with Build Number 10.4.4.18?
joshnl said:
Ya, I've now come across some of these other mentions through searching for info on tangential topics. Sorry if I asked a redundant question here - I did try my best to answer it myself before doing so, however.
Thanks for everyone's help.
Click to expand...
Click to collapse
Hey, no problem. Better to ask redundant questions than to brick your device. Geen zorgen. (<< Dutch, translates as "no worries")
borgmanjayce said:
Sorry to hijack the thread but I was wondering if this will work on JB 4.1.1 with Build Number 10.4.4.18?
Click to expand...
Click to collapse
Yes. The unlock tool is actually the same for the Tf101, TF201 and TF700 and has never been changed as far as I know. So, go ahead and unlock.
MartyHulskemper said:
Hey, no problem. Better to ask redundant questions than to brick your device. Geen zorgen. (<< Dutch, translates as "no worries")
Yes. The unlock tool is actually the same for the Tf101, TF201 and TF700 and has never been changed as far as I know. So, go ahead and unlock.
Click to expand...
Click to collapse
Yup
Do etttttt
Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
So can I unlock...and then root easily under JB?
So, I was intending to root my precious TF700, exactly when the warranty expires...As for it, I was keping my TF700 on ICS, but two days before the warranty expiration, my cat upgraded my device to JB...(seriously, my cat did that...She slept over the dock and go fgure how, authorized the upgrade...)
Now...well I don't mind JB, I'm actually liking it a lot, but I still want to root (to install Titanium Backup). I just don't want to downgrade...
If I use the Asus Unlock Tool (as said that works under JB) and then use the method listed in the All-In-One Guide (that links for this thread: http://forum.xda-developers.com/showthread.php?t=1929712), it will work and we will be ok, me & TF700?

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