Did I read correctly (sorry, can't find exact post) that there is or may be issues when going from MM and downgrading to stock LP or KK?
I have put several MM ROMs on my phone and have considering going back to stock (or possibly recovering my original TWRP backup).
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Hello, I have my phone quite a long time. First I had on it KitKat orginalnego which I mentioned at the C11 later I updated it to the CM12. I am not happy from the development of CM12 wanted me to have on your phone Lollipop original HTC. I tried to upload the TWRP backup Lollipop but I did not work WiFi. Is there any other way to get back to the software HTC?
I've searched the forum and havent found a specific answer to my question. I am currently running 5.0 with the viper rom and its pretty damn sweet. my problem is a lot of my apps and some of the xposed modules wont work on lollipop but are compatible with KitKat. so obviously i want to go back.
is there any way to go back to kitkat without having to plug my M8 into a computer?? i would basically like to do it remotely and on demand, you know flash OS back and forth like you can do with a rom. can somebody help me out with the process if it is at all possible.
You should be able to run a KK version of Viper (or other ROM) with Lollipop firmware, as least from what I've read from reports by others. While old firmware causes problems with current ROMs; the opposite has been found to be a a different matter: firmware has been found to usually be backwards compatible.
You can always make a TWRP backup of your current setup. Then try a KK ROM, and if you have issues, just restore back to LP.
If you do run into issues, then you probably do need to downgrade your firmware to KK (need s-off to downgrade firmware; and not sure if there is a computer-free way to flash back to KK firmware).
Hello guys. Really big help i need. I'm unclear based on this thread or previous 10n threads how to roll back from MM to LP. I tried once using 10n thread and got stock forever on tmobile stock screen. Would rather not try that again. I recovered by flashing kdz to 20i. 20i camera mods do not work so i would like to be on LP for those mods which matter to me the most. 100% pic quality. I used also LGup to did upgrade to 10n from 20i in xda thread that suppose to work but same result. Stock on tmobile boot screen and never passes by this.
Anyway can admin of this thread or admin put a stick , short step by step how to downgrade from 20i to 10n without getting stock on boot screen. Would rather avoid bricking it to boot loop issue.
Thank you so much. I used this thread step by step and got soft brick
http://forum.xda-developers.com/tmob...d-rom-t3188858
D851 MM to KK .. Downgrade Possible .
Can it be done safely ??
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aamszia said:
D851 MM to KK .. Downgrade Possible .
Can it be done safely ??
..
Click to expand...
Click to collapse
I'm also interested in this answer. The only reason I haven't updated to (any ART) rom is because I'm unsure if I can just restore a Dalvik backup without issues. The only way I would attempt is with TWRP.
i tried doing by Flash tool and it gives error like 0000008
bring up the post!
Curious as well. I'd like to get root.
Windows user not sure how to do it on Mac/Linux
by MM to KK I assume you want to take the LG G3 D851 from android 6.x down to 4.x
here goes...
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http://lgg3root.com/lg-g3-stock-factory-firmware/
http://lgg3root.com/lg-g3-root/how-to-unrootunbrick-lg-g3/
use the LG Flash tool plus the two files, follow instructions on that second link step by step.
LGD851_20140611_LGFLASHv160.dll
LGD851AT-01-V10c-310-260-JUN-20-2014+0.tot
That takes you back to the 4.x kitkat stock ROM, not rooted or anything.
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To go north from there back towards Lollipop or MM you can at this point use
http://www.download3k.com/Install-LG-Mobile-Support-Tool.html
B2CAppSetup.exe
Install it, will put an icon on your desktop, plug in your phone, open the app.
It's pretty much automatic, it updates the ROM from KK to Lolli, then if you hit "OK" it will update from Lolli to MM
- I just got both of these steps to work in the last 24 hours.
I'm still trying to find a valid "Root" method that doesn't ask me to install a funky ROM.
I went from a KK stock-rooted(TWRP 3.0) rom to the MM 6.0 Rom, realized I didn't really want to set everything up again, restored my KK backup. Only problem was I had to reflash the modem. That was a couple of days ago and the modem was the only issue.
I'm unsure about flashing a new/clean KK rom over a MM rom though.
KK Modem (D85110r) - https://www.androidfilehost.com/?fid=95832962473396848
I think I missed a step, in KitKat this phone needs a special command thrown at it so the memory cards will be read/write.
On the play store SDFix: KitKat Writeable MicroSD
I think that might be what I was missing last weekend. My phone is currently on MM but I can't root it with any method other than Kingroot and Kingroot is Bad News.
Yes. It's possible!.
So I recently purchased a brand new HTC M8 & the first thing I did was install TWRP & Custom Oreo ROM. However, I was not very impressed as two of the things I was looking forward to took a major hit - audio quality & battery drain on certain camera based apps. However, while most devices are very easy to return to stock ( I have experience with Samsung, OnePlus etc.) I cannot find a definitive guide that can help me restore to the last marshmallow update with stock firmware & recovery. Every online tutorial I try seems to work halfway and then the files wont flash etc.
Does anyone have a proper surefire way of bringing it back to stock. I would appreciate it alot.
Also its M8n (Euro Unlocked Version) it came with S-Off from the factory. It had Kitkat on it when I wiped it.
Thankyou
First of all, if you made a TWRP backup of your stock ROM (before flashing custom ROM); then you can just restore that to get back to the stock ROM. If you didn't make a TWRP backup, then you should have. This is a fundamental best practice when modding these devices. I find it surprising that so many folks skip doing this. For that matter, do not do anything to your phone without beforehand knowing how to reverse it (go back to stock).
Luckily, there is a collection of stock TWRP backups which you can use, plus a very well written guide: https://forum.xda-developers.com/htc-one-m8/help/tutorial-how-to-stock-stock-twrp-t3086860
Flashing custom ROM doesn't touch firmware, so that hasn't changed from stock firmware (Kitkat?). If you want to update firmware, the above linked thread has that as well.
On the note of firmware, you should not have been running an Oreo custom ROM with kitkat firmware (if that is what you did). It may or may not explain some of the issues you had. I'm actually surprised you were able to flash an Oreo ROM at all, with KK firmware.
As far as stock recovery, the link I gave also has the necessary files and instructions on how to restore stock recovery. But honestly, I don't feel it is value added to do so. The only reason to have stock recovery is for updates, and this phone is long done (years) with updates. And TWRP gives you a lot more flexibility to recover, backup, etc.
Alternately, your version may have RUU. This is a HTC specific tool you can use that to restore to full stock, including ROM, firmware, stock recovery - every single partition restored to stock (will also wipe all data on the phone). But I would need the exact phone info, in order to tell you which RUU (if your M8 version has one - not all do). If you want to go that route, do fastboot getvar all, and post the results (delete IMEI and serial number before posting).