Downgrade from 5.0 to 1.5 ? - Shield Tablet Q&A, Help & Troubleshooting

HI
Is it possible to downgrade back to 1.5 after installing the 5.0 OTA update. I am currently on 1.5 (rooted with stock recovery)) and use the K1 with my DJI Phantom 4. Need the ability to go back to 1.5 if 5.0 has any issues with the apps needed for the drone.

Yes, it is. Just flash the 1.5 factory image and ignore the update message. You will loose all your data.

edisso10018 said:
Yes, it is. Just flash the 1.5 factory image and ignore the update message. You will loose all your data.
Click to expand...
Click to collapse
I did that and it worked out in the end. However I had bootloops the fist time. So I booted TWRP via fastboot, wiped all partitions, including "system" and then reflashed. Then it worked like a charm.
For completeness sake: I then regularly updated to Nougat via OTA and rooted it by sideloading SuperSu 2.79. No problems whatsoever (finally ... ).

Has anybody else successfully downgraded back to 1.5 Marshmallow. They state on Nvidia Shield Zone not to attempt to return to Marshmallow or it will brick your device. I have also read of others successfully downgrading using various methods and others encountering problems but as yet not read about anyone actually bricking theirs whilst downgrading. I am trying to find the best/safest way on downgrading with minimal issues.

Related

[Q] Updating to 3.2 from rooted 3.1

I've looked high and low, but I can't find info on updating to 3.2 from root. I'm mostly terrified of losing everything I have setup on here when I update. Mostly just apps, movies, pics, and my layout. Can anyone put my fears to rest about updating? And can anyone provide a link on where I can get my hands on the update to install manually since it won't do an automatic update?
Thanks
lav0C,
If you are running the stock ROM and have CWM recovery installed,
you can use CWM to update to the latest 3.2-9 (8.6.5.9):
1. Update from 3.1 (8.4.4.11) to 3.2 (8.6.5.6) using the ZIP from this post:
http://forum.xda-developers.com/showthread.php?t=1190877
2. Update from 3.2 (8.6.5.6) to 3.2-9 (8.6.5.9) using the ZIP from this post:
http://forum.xda-developers.com/showthread.php?t=1234734
It worked for me!
Regards,
Eric
I have an overclock rom on my tablet. I don't think I can do it this way. I tried to flash the rom but it just spits out an error. It's able to mount it and everything, the moment it trys to impliment the changes it says that it was aborted. Any ideas?
Also, I have the Netflix patch. Not sure if that will cause problems too
lav0c said:
I have an overclock rom on my tablet. I don't think I can do it this way.
Click to expand...
Click to collapse
You're right - the CWM updates I listed are for stock ROMs only.
You may have to 1)un-root and go back to Asus standard HC3.1,
2) update to 3.2-9 with the Asus OTA updates, and 3) re-root.
I think your data would be safe during that process, but I'm not sure.
how do I safely un-root?
I used your method to attempt to put 3.2 on after updating 8445 to84411 but i got stuck in a boot loop and had to flash Prime 1.5 to get it back on.
any suggestions?

Having real trouble updating to Lollipop (recovery help?)

Alright so I have a 2013 Moto G, and basically in the past while on KitKat I've rooted my phone, given it custom recovery (TWRP), and messed around with the ROM (changed it to CM, PA and a few others and back). Now I've come to update to Lollipop and of course I need stock recovery to update my phone via OTA, and when it first prompted me to update, I had TWRP and I didn't really think, I just updated, this sent my phone into a bootloop, rebooting straight into TWRP every time I turned my phone on. Luckily I had a backup and I just restored to that and that fixed it. Recently I've been trying to fix the correct stock recovery for my phone so I can update, and I found some MotoTool AIO thing, and that changed my recovery back to KitKat stock (or so it says), now when I go into recovery it LOOKS like stock, can do everything you could normally do with stock recovery, but when I came to update it, about a quarter of the way though the update process, it errors and reboots my phone. Luckily this time my phone recognizes it has errored and just cancels the update instead of sending me into a boorloop. Any help would be greatly appreciated.
Thank you,
Tom.
tomisalunatic said:
Alright so I have a 2013 Moto G, and basically in the past while on KitKat I've rooted my phone, given it custom recovery (TWRP), and messed around with the ROM (changed it to CM, PA and a few others and back). Now I've come to update to Lollipop and of course I need stock recovery to update my phone via OTA, and when it first prompted me to update, I had TWRP and I didn't really think, I just updated, this sent my phone into a bootloop, rebooting straight into TWRP every time I turned my phone on. Luckily I had a backup and I just restored to that and that fixed it. Recently I've been trying to fix the correct stock recovery for my phone so I can update, and I found some MotoTool AIO thing, and that changed my recovery back to KitKat stock (or so it says), now when I go into recovery it LOOKS like stock, can do everything you could normally do with stock recovery, but when I came to update it, about a quarter of the way though the update process, it errors and reboots my phone. Luckily this time my phone recognizes it has errored and just cancels the update instead of sending me into a boorloop. Any help would be greatly appreciated.
Thank you,
Tom.
Click to expand...
Click to collapse
Try putting twrp back on and flashing stock Lollipop Rom. http://forum.xda-developers.com/moto-g/development/rom-stock-motorola-lollipop-rom-t3017510 You can also try aosp, cm12.1 or any other lollipop ROM.
The Lollipop OTA is very picky, I believe any modifications to the stock firmware will cause the update to fail. You will need to have a completely stock system for the OTA to install successfully. Find the correct KitKat firmware for your phone and flash it then try upgrading.
Hi.
I'm having a similar problem with te OTA being picky (topic here).
Is there a stock firmware "file map" so that we can check manually what is wrong and erase/add needed files ?
Maybe this could be done by checking a flashable stock rom ?
Thanks a lot guys.
EDIT : Found a solution here http://forum.xda-developers.com/mot...osing-apps-t2979971/post57658072#post57658072.
Worked perfectly !
OP, I am in the same situation. I did the same as you, and got the same results. Have you managed to solve it? It would be nice if you tell what you decide to do and what's the outcome. Thanks!
tomisalunatic said:
Alright so I have a 2013 Moto G, and basically in the past while on KitKat I've rooted my phone, given it custom recovery (TWRP), and messed around with the ROM (changed it to CM, PA and a few others and back). Now I've come to update to Lollipop and of course I need stock recovery to update my phone via OTA, and when it first prompted me to update, I had TWRP and I didn't really think, I just updated, this sent my phone into a bootloop, rebooting straight into TWRP every time I turned my phone on. Luckily I had a backup and I just restored to that and that fixed it. Recently I've been trying to fix the correct stock recovery for my phone so I can update, and I found some MotoTool AIO thing, and that changed my recovery back to KitKat stock (or so it says), now when I go into recovery it LOOKS like stock, can do everything you could normally do with stock recovery, but when I came to update it, about a quarter of the way though the update process, it errors and reboots my phone. Luckily this time my phone recognizes it has errored and just cancels the update instead of sending me into a boorloop. Any help would be greatly appreciated.
Thank you,
Tom.
Click to expand...
Click to collapse
Update to 5.1 success..... erm, well it's all relative
Eventually managed to update my XT1039 to 5.1 via ota.
Started with a fully charged phone and flashed 4.4.4 stock firmware (http://forum.xda-developers.com/moto-g/4g-development/xt1039-moto-g-4g-stock-firmware-kxb21-t2805619).
Once completed, powered up phone and signed into google play then updated the motorola update services app.
DO NOT install a custom recovery or root yet or the update will fail!
Start the update by going into settings/about phone/system updates.
After first boot into 5.1, do a factory reset.
To root once the upgrade is completed, download cf autoroot (http://forum.xda-developers.com/moto-g/4g-development/root-xt1039-cf-auto-root-peregrine-t2942406) and unzip to a folder on your pc. Open a command prompt and change directory to this folder. Powerup handset in bootloader mode (hold vol down while switching on), connect USB and run 'root-windows.bat' from the command prompt.
So far I'm hugely disappointed in the update as I use WiFi tethering alot and it appears to be a massive fail. I know it wasn't 100% in 4.4.4 or CM12 5.1 with both reqiuring an occasional reboot, but in 5.1, something's just not right and it's basically unusable (could it be updated radio or something?). Fortunately, USB tethering appears flawless.
Another obsrvation seems to be abscence of a + appearing in the HSPA signal indicator, I seem to be getting just the H appearing regardless.
Also no more bluetooth visibilty timeout setting.
After installing CWM 6.0.5.0, I got gliches with the display in recovery mode but it works.
Now after I have it rooted, ad free and de-bloated, fixed the power on logo and installed CWM 6.0.5.0, I'll stick with it for a while to just to see how the battery lasts.
In hindsight I should've stuck with CM12 5.1.

Nexus 5 - Android System Update (2.5MB) problem

Hello,
I have a Nexus 5 and installed Android 6.0 OTA and I rooted the phone. I recently got a notice for Android system update (2.5MB) and I have a problem with the update I suppose because of that root.
Update gets downloaded, the device restarts and then on the screen I get an error.
Does anyone know what the problem is and how to make the update?
Thanks!
Yes, I think a great number of people know the answer... I had to ask the same question myself a long time ago.
Since Android 5 (I think) the OTA process looks at the entire system for any changes to the ROM partitions, and it will update only if the ROM is intact and unchanged. Root changes the ROM, therefore no update.
I believe that you can update manually by flashing just the system partition, but you'll then have to re-root the phone.
It was precisely for this reason that I got fed up with root, despite its many advantages, and now run encrypted, unrooted, and with Netguard firewall protecting at least some of my privacy.
NoOne12 said:
Hello,
I have a Nexus 5 and installed Android 6.0 OTA and I rooted the phone. I recently got a notice for Android system update (2.5MB) and I have a problem with the update I suppose because of that root.
Update gets downloaded, the device restarts and then on the screen I get an error.
Does anyone know what the problem is and how to make the update?
Thanks!
Click to expand...
Click to collapse
u should update before making any changes in the system folder or to the recovery.
You should not take the OTA updates while rooted.
One solution would be to download the factory image for the update and fastboot flash system.img from the download, wipe cache, then reinstall supersu.

Unable to restore/mount/flash in TWRP and unable to achieve dl mode in LG Flashtool

Here's to hoping someone can help me out. My phone details before I messed up: LG G3 D850, rooted, TWRP 3.0, running Fulmics 5.2 for about 1 1/2 weeks
I noticed that I was not seeing the LTE indicator on my phone. I checked the HUB and saw the BootD850-30012016 data patch and figured that I just needed to install. So I flashed it and my phone wouldn't start. I was able to boot into recovery, so I figured I would do a clean install of the ROM so I did a full wipe, accidentally wiping EVERYTHING except for my external SD.
Result was that I can access TWRP but am unable to flash any of my backups or zips from my external SD, or OTG. I can see the files, but don't have the option to "swipe". I also am unable to 'mount' or 'install'.
At this point, I noticed that AT&T has finally released the OTA for Marshmallow, so I figured I would just use LG FlashTool and totally un-root and give the update a try. (BTW, I have used the flash tool many times with no problems/issues on both my phone and my son's D855).
Unfortunately, I am getting the dreaded "unable to change to download mode" after 15 seconds. I have uninstalled and re-installed Flash Tool, the LG Drivers and all files and used every port on both of my computers (Windows 10 btw) but can't get past the download error.
So...after many hours of digging, I took a leap of faith and was able to sideload Fulmics 5.1 successfully and install the 5.2 update from the HUB. I made backup of the ROM but TWRP still won't allow me to "swipe" and install/restore. I reinstalled TWRP using Flashify and it installed version 2.8 but still no go on flashing from recovery.
I realize that I'm lucky to have been able to figure out how to get the phone back using the sideload function in TWRP, but I really do want to go back to stock and it bugs me that I am unable to use my backups.
Sorry for the novel, but I wanted to be sure to include everything I did....if anyone can help me out I would be much obliged. My 11 year old is anxiously waiting on me to figure this out before she gets this phone (I'm moving up to the HTC 10 in a couple of weeks!). She still thinks I'm 'SuperMommy' so if I can fix this I get to keep my swagger!
I was also running fulmics 5.1 and updated to 5.2 in my phone but now i was having pretty good laggs and i finally realised that the update provided by the phone was corruped so i went on the official site and downloaded the same 5.2 OTAs from there and flashed it into TWRP recovery to finally get the latest version 5.3..know that is it always advisable to flash zip file when in recovery mode using TWRP recovery...The big mistake was cleaning also the internal memory of your phone.this caused the malfunction of twrp.
The issue is that most often i have seen cases of lagg in those updating to fulmics 5.2 from the Hub .sometimes in twrp recovery the update files will not successfully wipe and then reboot system with 5.2 installed but with many lagg the file downloaded there may be corrupted and not give you permission to swipe..if you really like fulmics and still update to the latest..Try this it may help you solve your problem:1 reinstall the fulmics 5.1 go to xdadevelopers.com/fulmics follow the link given by xpirit to www.fulmics.com and download the OTA 5.2(file size maybe 46 mb).. 2.reboot your phone now in twrp recovery it should now be able swipe and install..(if not then install Twrp 3.0 and try) 3-search the files in your internal memory or wherever you have downloaded it and flash it ..4.reboot system.That should be done!! In case you want to come back to stock and cant install from Twrp then the problem is with Twrp just download the latest version that goes with your phone.
Thanks guys for the suggestions. I finally figured it out after a couple days of sweating and swearing. Yaneddik, you were spot on about updating from the Hub. I ended up installing TWRP 2.8.6 and re-installed 5.1 from the Fulmics website along with the updates. Everything has been working great (except for losing LTE connectivity, but that's for another thread!). I'm not inclined to update TWRP to 3.0 unless absolutely necessary, 2.8.6 works just fine for me.
dcli23 said:
Thanks guys for the suggestions. I finally figured it out after a couple days of sweating and swearing. Yaneddik, you were spot on about updating from the Hub. I ended up installing TWRP 2.8.6 and re-installed 5.1 from the Fulmics website along with the updates. Everything has been working great (except for losing LTE connectivity, but that's for another thread!). I'm not inclined to update TWRP to 3.0 unless absolutely necessary, 2.8.6 works just fine for me.
Click to expand...
Click to collapse
Am a newbie here but a long time rooter on my older phones. This is the first time that I've seen the Hub mentioned. Can you kindly post a link?
TIA
Sent from my LG-H810 using Tapatalk
SofaSpud said:
Am a newbie here but a long time rooter on my older phones. This is the first time that I've seen the Hub mentioned. Can you kindly post a link?
TIA
Sent from my LG-H810 using Tapatalk
Click to expand...
Click to collapse
Hey there....you can access the Hub after you flash the Fulmics ROM. It's where you can get your tweaks, downloads, mods, etc. You'll find it in your app drawer.

How to downgrade HTC U11+ from Android Pie?

Already created thread in the wrong place https://forum.xda-developers.com/showthread.php?t=3952280
I have HTC U11+ TW version. Ever since I got the Pie update, my phone is freezing a lot. I need to force restart it 10+ times a day. I tried factory reset, clear cache, etc. Nothing works. I did not have any experience with flashing, but I have been reading a lot. I have my bootloader unlocked with S-ON.
My current build number is 2.15.709.1, since I wanted to downgrade, I tried flashing stock image HTC_U11+_TW_1.24.709.999_Images_OTA using fastboot (no TWRP). My phone went into a bootloop when I did that. I think this is because I can only flash an image with the same build number? Anyway, I flashed a HTC_U11+_TW_2.15.709.1_Images_OTA image and my phone is back to where it was, Android Pie (no bootloop), but still freezing a lot.
I found the HTC_DevInfo_Tool.zip tool on this thread https://forum.xda-developers.com/u11/how-to/guide-downgrade-htc-u11-oreo-to-nougat-t3754481, but I am not sure if it will work on my phone.
Can someone advise what should I do to downgrade? Also did anyone face a similar problem after the update?
I found someone tried what I wanted to do here
https://forum.xda-developers.com/htc-u11/help/error132-signature-error-downgrade-htc-t3948079
Looks like it wont work?

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