Just bought my first Sony Android device today (been using Samsung up to now).
Managed to unlock the bootloader.
Then tried to flash the Androplus Kernel but did the wrong one so I killed WIFI (not useable anymore).
Restored back to stock state 28.0.A.8.251 using EMMA/FlashTool (Flashed firmware for WIFI model Nordics)
WIFI working but now I get no update notifications over WIFI/OTA(?!?)
Now trying to find a way to update to 28.0.A.8.260 to attempt flashing AndroPlus Kernel/Custom Recovery again.
Have only been able to find FTF for Argentina market.
-- I want to stay on Lollipop 5.0.2 --
Any help with this would be much appreciated.
//xdafan
xdafan2015 said:
Just bought my first Sony Android device today (been using Samsung up to now).
Managed to unlock the bootloader.
Then tried to flash the Androplus Kernel but did the wrong one so I killed WIFI (not useable anymore).
Restored back to stock state 28.0.A.8.251 using EMMA/FlashTool (Flashed firmware for WIFI model Nordics)
WIFI working but now I get no update notifications over WIFI/OTA(?!?)
Now trying to find a way to update to 28.0.A.8.260 to attempt flashing AndroPlus Kernel/Custom Recovery again.
Have only been able to find FTF for Argentina market.
-- I want to stay on Lollipop 5.0.2 --
Any help with this would be much appreciated.
//xdafan
Click to expand...
Click to collapse
Hi,
Use flashtool (not the sony Emma) and Xperifirm (there are many more firmware to download) then create a FTF file and flash it
Or try: http://www.xperiablog.net/forum/resources/categories/xperia-z4-tablet-wi-fi.81/
Fix Sony Album & Camera after Xposed install?!?
killdozer56 said:
Hi,
Use flashtool (not the sony Emma) and Xperifirm (there are many more firmware to download) then create a FTF file and flash it
Or try: http://www.xperiablog.net/forum/resources/categories/xperia-z4-tablet-wi-fi.81/
Click to expand...
Click to collapse
Thanks for your help, I managed to get the correct firmware (though UK version not Nordic) on the tablet and root it successfully with AndroPlus firmware 14. Also installed Xposed Framework v80 with success, though now Sonys Album app, and the stock Sony Camera force closes after I installed Xposed Framework, and I'm wondering if there is any way to fix this issue. I'd like to be able to use these, but if it's not possible I'll just use some other camera app and album/gallery app.
Any help would be appreciated!
//xdafan2015
xdafan2015 said:
Thanks for your help, I managed to get the correct firmware (though UK version not Nordic) on the tablet and root it successfully with AndroPlus firmware 14. Also installed Xposed Framework v80 with success, though now Sonys Album app, and the stock Sony Camera force closes after I installed Xposed Framework, and I'm wondering if there is any way to fix this issue. I'd like to be able to use these, but if it's not possible I'll just use some other camera app and album/gallery app.
Any help would be appreciated!
//xdafan2015
Click to expand...
Click to collapse
There is some workaround here (search for deodex app and cameracommon apk)
Is that all I need to do?
killdozer56 said:
There is some workaround here (search for deodex app and cameracommon apk)
Click to expand...
Click to collapse
Do I only need to deodex the cameracommon.apk and album(whatever).apk and push them back onto the phone and it will work with xposed framework installed?? I need more info on how to make this happen
xdafan2015 said:
Do I only need to deodex the cameracommon.apk and album(whatever).apk and push them back onto the phone and it will work with xposed framework installed?? I need more info on how to make this happen
Click to expand...
Click to collapse
Ask to @alex009988 he have installed Xposed
xdafan2015 said:
Do I only need to deodex the cameracommon.apk and album(whatever).apk and push them back onto the phone and it will work with xposed framework installed?? I need more info on how to make this happen
Click to expand...
Click to collapse
Hi. No you don't have to.
http://forum.xda-developers.com/showpost.php?p=65805617&postcount=13
alex009988 said:
Hi. No you don't have to.
http://forum.xda-developers.com/showpost.php?p=65805617&postcount=13
Click to expand...
Click to collapse
Thanks for your response! Though the link you provided didn't clue me in very much as to how to deodex system.
I am running Lollipop 5.0.2 (.260 something firmware). Primarily interested in just getting Album app and Camera app that came with the Z4 tablet to work while having Xposed Framework 0.80 installed and running (avoid force closing)
//xdafan
xdafan2015 said:
Thanks for your response! Though the link you provided didn't clue me in very much as to how to deodex system.
I am running Lollipop 5.0.2 (.260 something firmware). Primarily interested in just getting Album app and Camera app that came with the Z4 tablet to work while having Xposed Framework 0.80 installed and running (avoid force closing)
//xdafan
Click to expand...
Click to collapse
Update the system to the android MM. And everything will work with xposed installed and without patches
xdafan2015 said:
Just bought my first Sony Android device today (been using Samsung up to now).
Managed to unlock the bootloader.
Then tried to flash the Androplus Kernel but did the wrong one so I killed WIFI (not useable anymore).
Restored back to stock state 28.0.A.8.251 using EMMA/FlashTool (Flashed firmware for WIFI model Nordics)
WIFI working but now I get no update notifications over WIFI/OTA(?!?)
Now trying to find a way to update to 28.0.A.8.260 to attempt flashing AndroPlus Kernel/Custom Recovery again.
Have only been able to find FTF for Argentina market.
-- I want to stay on Lollipop 5.0.2 --
Any help with this would be much appreciated.
//xdafan
Click to expand...
Click to collapse
Why do you want to stay with 5.0.2 ?
killdozer56 said:
Why do you want to stay with 5.0.2 ?
Click to expand...
Click to collapse
Well for the reason that I don't know if there is such a thing as an Androplus kernel that will allow me to successfully root the tablet running Mashmallow system software instead. It was enough of a pain to finally get the tablet rooted and working the way I like it for me to want to just stay with what works
xdafan2015 said:
Well for the reason that I don't know if there is such a thing as an Androplus kernel that will allow me to successfully root the tablet running Mashmallow system software instead. It was enough of a pain to finally get the tablet rooted and working the way I like it for me to want to just stay with what works
Click to expand...
Click to collapse
Check the AndroPlusKernel thread. There is. You can use Titanium Backup or Helium to backup and restore your apps and settings.
Everybody who's been responding, THANK YOU!
For now I don't feel like I want to mess around with updating to the latest Android version on my tablet and re-rooting etc.
So if someone would be so kind as to explain to me how to get the Sony Album app and Sony Camera app deodexed/running with Xposed Framework v80 installed without force closing I would very much appreciate that. I only want to fix that for now, maybe in the future I will look at re-rooting under Android 6.0 but not right now.
//xdafan
alex009988 said:
Update the system to the android MM. And everything will work with xposed installed and without patches
Click to expand...
Click to collapse
Looks like I will have to bite the bullet here was hoping for some instructions for getting just the Album and Camera running on Android 5.0.2, but if that's not doable I will have to look into getting MM and rooting it again.
Question though is where I can find a suitable FTF file with Android MM 32.1.A.1.163 for the SGP712 (WIFI model)?
Or can/should I just:
1) Update firmware from Sony PC Companion then
2) Flash AndroPlus Kernel v20 and then TWRP 2.8.7.0 Touch fixed v2 using fastboot from Windows
3) Then installing SuperSU/Xposed Framework v80 in TWRP as I did with 5.0.2 when rooting that?
Is there any way for me to update to Android MM 32.1.A.1.163 and ensuring a FULL system reset so I know I will get a fresh start?
//xdafan
xdafan2015 said:
Looks like I will have to bite the bullet here was hoping for some instructions for getting just the Album and Camera running on Android 5.0.2, but if that's not doable I will have to look into getting MM and rooting it again.
Question though is where I can find a suitable FTF file with Android MM 32.1.A.1.163 for the SGP712 (WIFI model)?
Or can/should I just:
1) Update firmware from Sony PC Companion then
2) Flash AndroPlus Kernel v20 and then TWRP 2.8.7.0 Touch fixed v2 using fastboot from Windows
3) Then installing SuperSU/Xposed Framework v80 in TWRP as I did with 5.0.2 when rooting that?
Is there any way for me to update to Android MM 32.1.A.1.163 and ensuring a FULL system reset so I know I will get a fresh start?
//xdafan
Click to expand...
Click to collapse
1) Sony Pc companion doesn't work with unlocked bootloader. Use flashtool and xperifirm
http://www.xperiablog.net/2016/03/12/install-xperia-marshmallow-using-flashtool-and-xperifirm-guide/
2) kernel v21 and TWRP 3.0.0-0
https://dl.androplus.org/Xperia Z4 Tablet SGP712_SGP771/
3) yes Xposed v80-sdk23-arm64.zip and SuperSU v2.65
killdozer56 said:
1) Sony Pc companion doesn't work with unlocked bootloader. Use flashtool and xperifirm
http://www.xperiablog.net/2016/03/12/install-xperia-marshmallow-using-flashtool-and-xperifirm-guide/
2) kernel v20 and TWRP 3.0.0-0
https://dl.androplus.org/Xperia Z4 Tablet SGP712_SGP771/
3) yes Xposed v80-sdk23-arm64.zip and SuperSU v2.65
Click to expand...
Click to collapse
Seriously BIG thanks for your help with this! Followed the flashtool/xperifirm tutorial you linked to and then flashing and using the kernel/TWRP and Xposed component (v80 sdk23 arm64) that you recommended. Everything now works like a charm, and I am even back on the "Nordic combined" stock ROM image rather than the U.K one that I had to use for Android 5.0.2! And the Sony camera app and album app both work like a charm with no issues!
I'm VERY happy right now!!
/xdafan
xdafan2015 said:
Seriously BIG thanks for your help with this! Followed the flashtool/xperifirm tutorial you linked to and then flashing and using the kernel/TWRP and Xposed component (v80 sdk23 arm64) that you recommended. Everything now works like a charm, and I am even back on the "Nordic combined" stock ROM image rather than the U.K one that I had to use for Android 5.0.2! And the Sony camera app and album app both work like a charm with no issues!
I'm VERY happy right now!!
/xdafan
Click to expand...
Click to collapse
:good:
You can post your result with xposed and the modules you use in this thread:
http://forum.xda-developers.com/showthread.php?t=3339355
Related
Hey guys,
Can I still use the easy root tool to root after updating to the 4.4.4 firmware?
Thanks
Nope
I tried but it is getting stuck on CREATING VM (JAVASUCKS)
Same here... +1 Stuck on "Creating VM... "
No, the known flaws in 4.4.2 are all patched for latest fw, only current way around it is to downgrade, root install dual recovery and flash a pre-rooted zip from CWM.
In other words;
Go back to .314 (4.4.2) firmware,
Root,
Install a recovery,
And flash the new 4.4.4 firmware via recovery.
V4LKyR said:
In other words;
Go back to .314 (4.4.2) firmware,
Root,
Install a recovery,
And flash the new 4.4.4 firmware via recovery.
Click to expand...
Click to collapse
There are new rumors that you can root 314 - select preserve mode in SuperSU - and go OTA... and root will remain...
http://forum.xda-developers.com/showpost.php?p=56542305&postcount=131
nomaj said:
There are new rumors that you can root 314 - select preserve mode in SuperSU - and go OTA... and root will remain...
http://forum.xda-developers.com/showpost.php?p=56542305&postcount=131
Click to expand...
Click to collapse
Yeah I've heard that aswell. It's most likely working. Shall I try it? Just spent a few hours getting 4.4.4 work on my phone with root...
Ah right - Fuuuun...
I think i'll just carry on stock until someone sorts out a rooting method for 4.4.4 that doesn't involve so much faffing about lol.
Thanks for all the replies
Just keep a eye in Z3 Section too
4.4.4 firmrare is a near direct port
Hi folks,
I have a new 4.4.4 Z2, should I root it now or wait after the Lollipop version is installed?
Will I be able to install the Lollipop when rooted?
Godyn said:
Hi folks,
I have a new 4.4.4 Z2, should I root it now or wait after the Lollipop version is installed?
Will I be able to install the Lollipop when rooted?
Click to expand...
Click to collapse
We don't know if we recive lollipop we can make a upgrade...but you can easly unroot the phone, flashing ftf from flashtool
Alllrriight ! good to know !
Found it !
http://forum.xda-developers.com/showthread.php?t=2054486
http://www.flashtool.net
Godyn said:
Alllrriight ! good to know !
Found it !
http://forum.xda-developers.com/showthread.php?t=2054486
http://www.flashtool.net
Click to expand...
Click to collapse
Now struggling for a night with unlocking the bootloader, sooms that W7x64 has a prob with it so he can't find the driver.
I'm becoming a nerd
I have unlocked bootloader with cyanogenmod (cm) 12.1 installed. I installed XPosed Framework and things are becoming unstable and I would like to go back to stock android. How to do this?
There is the thread "[Z2] [D6503 Marshmallow] [23.5.A.0.575] PRE-ROOTED + TWRP 3.0.0.2 + Xposed [LB/UB]"
but the requirements I don't have:
Checklist:
Quote:
lollipop/marshmallow (stock or stock based) - I have CM 12.1
root
recovery
non-xposed stock (USE xposed-UNINSTALLER) - I have XPOSED
Click to expand...
Click to collapse
I guess I can uninstall XPOSED but does CM count as stock or stock based? I'm not sure. What's best thing to do?
lightningglasses said:
I have unlocked bootloader with cyanogenmod (cm) 12.1 installed. I installed XPosed Framework and things are becoming unstable and I would like to go back to stock android. How to do this?
There is the thread "[Z2] [D6503 Marshmallow] [23.5.A.0.575] PRE-ROOTED + TWRP 3.0.0.2 + Xposed [LB/UB]"
but the requirements I don't have:
I guess I can uninstall XPOSED but does CM count as stock or stock based? I'm not sure. What's best thing to do?
Click to expand...
Click to collapse
Flash sony stock .575 via flashtool then install the rom you want
just flash via flashtool, you will get the stock rom.
dylanel98 said:
Flash sony stock .575 via flashtool then install the rom you want
Click to expand...
Click to collapse
Sorry but I cannot find any working links to download .575 ftf do you know of any? I need the North American version.
lightningglasses said:
Sorry but I cannot find any working links to download .575 ftf do you know of any? I need the North American version.
Click to expand...
Click to collapse
Flash tool should have a built in firmware downloader. I used it to download a UK based stock LP firmware. So should work for you. Sure it uses XperiaFirm.
Sent from my D6503 using XDA-Developers mobile app
Thanks working~!
Hello you all
I've been trying to make magisk Systemless Root work on my Z Tablet but haven't had any succes.Has anyone succeeded in doing it?
If yes can you share how you did.
Thanks.
cdou2391 said:
Hello you all
I've been trying to make magisk Systemless Root work on my Z Tablet but haven't had any succes.Has anyone succeeded in doing it?
If yes can you share how you did.
Thanks.
Click to expand...
Click to collapse
Systemless root is developed mainly for Marshmallow.
Latest stock firmware is Lollipop which uses system root.
So if you use custom ROMs like CM13/RR you can use SuperSU 2.78 SR1 (systemless) which works perfectly.
If you stick with latest stock, use old system SuperSU ~v2.4.
Speaking about magisk, it is stated:
Currently Known Not Working Devices (v6):
Sony devices generally: Haven't investigated why it won't work, if you know any addition quirks about Sony boot image modifications, please contact me
Click to expand...
Click to collapse
Rootk1t said:
Systemless root is developed mainly for Marshmallow.
Latest stock firmware is Lollipop which uses system root.
So if you use custom ROMs like CM13/RR you can use SuperSU 2.78 SR1 (systemless) which works perfectly.
If you stick with latest stock, use old system SuperSU ~v2.4.
Speaking about magisk, it is stated:
Currently Known Not Working Devices (v6):
Sony devices generally: Haven't investigated why it won't work, if you know any addition quirks about Sony boot image modifications, please contact me
Click to expand...
Click to collapse
Thanks mate.will try it out and hope it works
Sent from my Z5 Compact using XDA Labs
Hi everyone , i'm new here but was told there's alot of fantastic people here that could help with my problem, so here goes.
I'm familiar with the process of using flashtool and downgrading my firmware , i recently flashed to 4.3 to enable root and then used towelroot , which worked fine, but i had issues with Link2sd not working correctly, which has important files i need to use. i decided just to go back to 5.1.1 ,so i flashed the firmware in the title and used Kingroot as a simple solution , but i honestly don't trust it being there. Ive read a few posts but most of the links for files have gone because the system is quite old now , can someone point me in the right direction and help me out please.
Bootloader - can't be unlocked (according to Sony)
Firmware 5.1.1 (current)
If any more information needs to be added, please let me know, thank you
If you don't want to use chineese root tools like KingRoot and Vroot, install any firmware like 4.4.4 or 5.0.2, after install recovery using option 3 (Installation on an unrooted ^(Lollipop 5.0^) ROM using rootkitXperia). Upon entering recovery, flash PreRooted 5.1.1 zip. As a result, you will have 5.1.1 with root and recovery.
Rootk1t said:
If you don't want to use chineese root tools like KingRoot and Vroot, install any firmware like 4.4.4 or 5.0.2, after install recovery using option 3 (Installation on an unrooted ^(Lollipop 5.0^) ROM using rootkitXperia). Upon entering recovery, flash PreRooted 5.1.1 zip. As a result, you will have 5.1.1 with root and recovery.
Click to expand...
Click to collapse
Thank you for the reply, really appreciate it, once i finish work i'll give it a try tonight , if i get stuck do you mind helping me out again ? should be okay though
Rootk1t said:
If you don't want to use chineese root tools like KingRoot and Vroot, install any firmware like 4.4.4 or 5.0.2, after install recovery using option 3 (Installation on an unrooted ^(Lollipop 5.0^) ROM using rootkitXperia). Upon entering recovery, flash PreRooted 5.1.1 zip. As a result, you will have 5.1.1 with root and recovery.
Click to expand...
Click to collapse
Could you point me in the direction of obtaining 4.4.4 firmware, or 5.02 ? i want to make sure i do everything correctly, i know how to flash it with flashtool so i should be okay after that.
Habbz said:
Could you point me in the direction of obtaining 4.4.4 firmware, or 5.02 ? i want to make sure i do everything correctly, i know how to flash it with flashtool so i should be okay after that.
Click to expand...
Click to collapse
Look in android development section. 5.0.2 is there.
Hi guys,
I really need help here. I have a SGP312, bootloader unlocked, and I'd like to get back to stock rom 10.7.A.0.228 because I need MHL-Output and this doesn't work with any custom rom I tried. Here's the problem: I can get into fastboot and into flash mode but nothing I try is working. If I use flashtool the and flash latest XperiFirm ROM for SGP312 everything is running fine until I try to boot. The Sony logo appears and then nothing happens. Once I waited for over 30 minutes. Screen stays on but it's not booting.
So back to flashing recovery...in recovery I can flash ALL custom roms I want. LineageOS, crDroid, CyanogenMod, no problem. If I try to flash this: "https://forum.xda-developers.com/xperia-tablet-z/general/stock-10-7-0-228-vmo-t3303365" I have same problem as described before. Sony logo pops up, screen stays on, no boot.
Also I tried different recoveries TWRP, CWM, Phil's and so on and nothing seems to work. With wipes without wipes does not matter...
And I tried Sony flash tool Emma (with rom for SGP11) and I tried with TWRP to flash a backup of 10.7.A.0.228 I made...both with same results
Can anyone help? I just want to go back to Android 5.1.1 (root preferred but if no root it's also okay) or I need a custom rom with working MHL. Does anyone have the one clue that can get me back to stock rom?
Thanks guys!
johneggman said:
Does anyone have the one clue that can get me back to stock rom?
Thanks guys!
Click to expand...
Click to collapse
It's a known issue, especially after coming from android 7.x.x ROMs.
You need to flash ANY stock ROM except 5.1.1. 4.1.2 or 4.4.2 will do. After the ROM boots ok, you can flash 5.1.1 directly via Flashtool 0.9.18.6.
It will work.
Rootk1t said:
It's a known issue, especially after coming from android 7.x.x ROMs.
You need to flash ANY stock ROM except 5.1.1. 4.1.2 or 4.4.2 will do. After the ROM boots ok, you can flash 5.1.1 directly via Flashtool.
It will work.
Click to expand...
Click to collapse
Thank you very much! I'll give that a try. Right now I'm having problems with flashtool 0.9.23.2. It gives me the "Processing of loader.sin finished with errors" and "Error in processHeader : 1" when I try to flash. Drivers are installed correctly, tablet z is recognized as "Sony sa0107". I'm running Windows 10 64bit and flashtool as admin.
Any ideas?
johneggman said:
Thank you very much! I'll give that a try. Right now I'm having problems with flashtool 0.9.23.2. It gives me the "Processing of loader.sin finished with errors" and "Error in processHeader : 1" when I try to flash. Drivers are installed correctly, tablet z is recognized as "Sony sa0107". I'm running Windows 10 64bit and flashtool as admin.
Any ideas?
Click to expand...
Click to collapse
you need version 0.9.18.6.
Rootk1t said:
you need version 0.9.18.6.
Click to expand...
Click to collapse
Thank you! I'll give that a try as soon as I have time. If that also does not work I'll try flashing with my Macbook. Maybe my Windows computer really has some driver issues.
Rootk1t said:
you need version 0.9.18.6.
Click to expand...
Click to collapse
Hi Rootk1t,
thanks for the tip! It worked. I went from 4.4.4 to 5.1.1 prerooted although I had to do this with a Macbook. Even version 0.9.18.6 didn't want to flash my SGP312. I think the drivers on my windows machine are really messed up. But now everything is fine!
Thanks again!
Do you have any hints for me where I can find older stock versions?
schaeaef said:
Do you have any hints for me where I can find older stock versions?
Click to expand...
Click to collapse
Try finding your FTF on http://xperiafirmware.com/
johneggman said:
Hi Rootk1t,
thanks for the tip! It worked. I went from 4.4.4 to 5.1.1 prerooted although I had to do this with a Macbook. Even version 0.9.18.6 didn't want to flash my SGP312. I think the drivers on my windows machine are really messed up. But now everything is fine!
Thanks again!
Click to expand...
Click to collapse
So where did you find the stock 4.4.4 for SGP312? Every single thing I find, links are dead. Thanks
jhcomputerguy said:
So where did you find the stock 4.4.4 for SGP312? Every single thing I find, links are dead. Thanks
Click to expand...
Click to collapse
I'm gonna check as soon as get home. All I remember is, that I was searching a long time because, as you said, all links were dead. Maybe I still have the ROM somewhere in my files. I'll get back to you.
jhcomputerguy said:
So where did you find the stock 4.4.4 for SGP312?
Click to expand...
Click to collapse
I have some tablet firmwares saved.
Rootk1t said:
It's a known issue, especially after coming from android 7.x.x ROMs.
You need to flash ANY stock ROM except 5.1.1. 4.1.2 or 4.4.2 will do. After the ROM boots ok, you can flash 5.1.1 directly via Flashtool 0.9.18.6.
It will work.
Click to expand...
Click to collapse
This was exactly what I needed, thanks! Couldn't flash anything on my SGP311 with the latest Flashtool, but followed your advice and had no issue.
Rootk1t said:
It's a known issue, especially after coming from android 7.x.x ROMs.
You need to flash ANY stock ROM except 5.1.1. 4.1.2 or 4.4.2 will do. After the ROM boots ok, you can flash 5.1.1 directly via Flashtool 0.9.18.6.
It will work.
Click to expand...
Click to collapse
thanks this fixed my SGP311
I flashed 4.4.4 rom
managed to find on 4pda russian website. not sure if pasting link is allow here but just google 4pda and your model number or topic 470240
the page has a complete archive
This saved my SGP311! Thanks for sharing the breadcrumbs to an active download link for 4.4.4 in 2018, found it, downloaded it, flashed it, booted again!
Rootk1t said:
It's a known issue, especially after coming from android 7.x.x ROMs.
You need to flash ANY stock ROM except 5.1.1. 4.1.2 or 4.4.2 will do.
Click to expand...
Click to collapse
Just for the search engine: 5.0.2 didn't work for me either - same symptoms as with 5.1.1. Going back to 4.4.4 worked.
Rootk1t said:
It's a known issue, especially after coming from android 7.x.x ROMs.
You need to flash ANY stock ROM except 5.1.1. 4.1.2 or 4.4.2 will do. After the ROM boots ok, you can flash 5.1.1 directly via Flashtool 0.9.18.6.
It will work.
Click to expand...
Click to collapse
Thank you SO much! I have been flashing umpteen versions with no luck and now with a very ancient "store front" version I'm back up and running! Thanks!
I'm sorry but I can't find any suitable firmware for SGP312.
I'm currently on Android 5.1.1 (Build 10.7.A.0.228, Germany/EU if that matters), and I'd really like to try to upgrade it to LineageOS 15.1 for all kinds of reasons; but in case that I botch anything (or the apps I really need don't work, like the screen time manager, as it's the kids' device), I really want to have a working firmware at hand to at least recover it back.
Kinda-noob question: do I really need a flashable firmware or would a full nandroid backup work for a rollback once I have TWRP installed?
XPUser99 said:
I'm sorry but I can't find any suitable firmware for SGP312.
I'm currently on Android 5.1.1 (Build 10.7.A.0.228, Germany/EU if that matters), and I'd really like to try to upgrade it to LineageOS 15.1 for all kinds of reasons; but in case that I botch anything (or the apps I really need don't work, like the screen time manager, as it's the kids' device), I really want to have a working firmware at hand to at least recover it back.
Kinda-noob question: do I really need a flashable firmware or would a full nandroid backup work for a rollback once I have TWRP installed?
Click to expand...
Click to collapse
For a kids device, i would recommend to stay on sony stock 5.1.1, because games run faster there, also it is already tried and tested with easy root installation and debloating.
To revert back from custom ROM (LOS or RR) to stock you'll need to flash firstly any firmware (like 4.4.4) except the latest 5.1.1, then boot it, and afterwards update to 5.1.1 if you want so. If you revert straight to the latest 5.1.1 stock, you'll get permanent bootloop or black screen issue.
So you need to have at least two stock firmware packages.
As for nandroid backup, you can't revert from custom rom to stock via restoring nandroid backup.
Fresh install is recommended.