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Hey guys , Since I upgraded to Nougat, my phone is pre-encrypted and why can't I decrypt it? Why is it like this? I want to decrypt it so that my phone will be a little faster. So how can I decrypt it?
Unlock, install twrp and format data.
lafester said:
Unlock, install twrp and format data.
Click to expand...
Click to collapse
Can't I just do it without unlocking? I can encrypt and unencrypt the phone easily(factory rest) on all my other devices?And any clues why is it pre-encrypted?
I suppose you could try a factory reset in stock recovery.
lafester said:
I suppose you could try a factory reset in stock recovery.
Click to expand...
Click to collapse
I've reset factory a couple times but that option is not choosable and it is written encrypted.
I mean I haven't even encrypted my phone ever , so why is it encrypted?Is it done automatically? What about yours?Is it pre-encrypted too?
It was...
lafester said:
It was...
Click to expand...
Click to collapse
I guess you've got the G or U model?right?(mine is A2017)
Boot into TWRP and change the data partition type from f2s to EXT4.
Double tap screen awake
My phone double tap screen awake doesn't work since these updates what can I do.It's a axon 7 2016 model..
Paulkdixon96 said:
My phone double tap screen awake doesn't work since these updates what can I do.It's a axon 7 2016 model..
Click to expand...
Click to collapse
I think you are in the wrong thread.
Aj-jss said:
I mean I haven't even encrypted my phone ever , so why is it encrypted?Is it done automatically? What about yours?Is it pre-encrypted too?
Click to expand...
Click to collapse
Zte stock rom comes pre-encrypted on every new install. The only way to bypass it is to edl flash a stock rom with twrp. Boot right into twrp after the flash. Find a modded stock boot.img that has a modded fstab, flash it, then boot and your phone will be unencrypted with the stock rom.
Thank you all. I'll do as you said and unencrypt it.
DEAR ZTE CUSTOMER,
Pls describe clearly about the situation of your encrypted phone, because our developer confused about such encrypted issues. BTW, please provide your phone'IMEI.
Thank you!
William Guo said:
DEAR ZTE CUSTOMER,
Pls describe clearly about the situation of your encrypted phone, because our developer confused about such encrypted issues. BTW, please provide your phone'IMEI.
Thank you!
Click to expand...
Click to collapse
No issues. It is encrypted by default in stock ROM.
This guy seems to be spamming and looking for imei info.
Mine is encrypted. Brand new out of box, updated to B10 MM then to B04 Nougat 7.1.1
What are the implications of it being encrypted? Mine is remaining stock, not even TWRP recovery or root. I'm happy if it's secure as I have personal and work SIM in it and will be using a couple of apps that look for root. Kind of tired of modding phones, just want life to be simple and reliable, able to take updates when I like. The work Nexus 5X was a ****ty phone but I got used to it being updated. It's a rare one that doesn't bootloop and is on Oreo but I hate carrying two phones thus the reason for buying the Axon 7 for dual SIM.
RobboW said:
Mine is encrypted. Brand new out of box, updated to B10 MM then to Nougat.
What are the implications of it being encrypted? Mine is remaining stock, not even TWRP recovery or root. I'm happy if it's secure as I have personal and work SIM in it and will be using a couple of apps that look for root.
Click to expand...
Click to collapse
I don't believe you'll get more performance out of an unencrypted phone, or not enough to justify it for that matter. also, on some phones you need it not to be encrypted if you want to see the internal storage in TWRP, but on this phone it doesn't happen.
You can fix it in your settings--hand design(sort of, I guess),or you can update the latest version from ZTE office website. Good luck!
I've decided that I'm not really ready for Oreo on this phone until Lineage 15.1 is final with all features ported. I'm going back to stock and I'm wondering - are there any side effects to doing so? I've heard that people have permanently lost VoLTE, had IMEI issues, etc. I'm very wary of trying anything that I'm not sure about... does anyone have information on this?
Many thanks.
Make sure you use latest software for your region, also whether retail version or not.
Other than that good luck
Ray
I flashed the stock ROM for my device and it's running just fine with no errors. I pass SafetyNet and my bootloader says I'm on the official firmware.
The IMEI issue seems to be related to stock fastboot.
So you can either skip flashing that or flash a TWRP flashable stock ROM.
bornlivedie said:
The IMEI issue seems to be related to stock fastboot.
So you can either skip flashing that or flash a TWRP flashable stock ROM.
Click to expand...
Click to collapse
By saying "skip flashing that" what do you mean?
Jrhotrod said:
By saying "skip flashing that" what do you mean?
Click to expand...
Click to collapse
Fastboot ROM, I think
If you fastboot flash stock rom and have Oreo 8.1 as your system now, don't do it!. You will lose voLTE and will most likely lose 4g (avoidable by skipping the two modem wipe commands). Until official Oreo, there may be no way to get voLTE back for those (myself included) who lost it. Unfortunately, even official Oreo may not fix the voLTE, it could be borked forever.
As said above, right now, safest way to go stock is to flash the twrp version, however, you still lose 4g unless the modem commands are removed from the updater-script or, you backup your efs partition in twrp of your current working system, restoring it over stock rom.
I didn't notice any side effects. Though I probably lost VoLTE, but since I didn't even know it existed or that people used voices to communicate on these things, it didn't really affect me I guess.
Yesterday though, I went like this -> Unlocked Stock -> Pixel XP -> OmniRom - Unlocked Stock NO IMEI -> Pixel XP -> Locked Stock. And I think I'm going back to Pixel XP today lol.
C--Dog said:
I didn't notice any side effects. Though I probably lost VoLTE, but since I didn't even know it existed or that people used voices to communicate on these things, it didn't really affect me I guess.
Yesterday though, I went like this -> Unlocked Stock -> Pixel XP -> OmniRom - Unlocked Stock NO IMEI -> Pixel XP -> Locked Stock. And I think I'm going back to Pixel XP today lol.
Click to expand...
Click to collapse
Wait - so locking your bootloader after flashing stock fixes the issue?
Fixes what issue? The IMEI thing? There's a whole thread on it. And one way was to flash Pixel, then flash stock. It's a little more complicated than that, but that's the gist.
I think VoLTE is not getting fixed, if that's what you meant.
C--Dog said:
Fixes what issue? The IMEI thing? There's a whole thread on it. And one way was to flash Pixel, then flash stock. It's a little more complicated than that, but that's the gist.
I think VoLTE is not getting fixed, if that's what you meant.
Click to expand...
Click to collapse
You may be about to save me. You got a link to that thread?
Edit: And no, I really don't care about VoLTE. Only reason I would is if I sell this phone to some Indian (which I won't, this phone is amazing)
Jrhotrod said:
You may be about to save me. You got a link to that thread?
Edit: And no, I really don't care about VoLTE. Only reason I would is if I sell this phone to some Indian (which I won't, this phone is amazing)
Click to expand...
Click to collapse
Here ya go:
https://forum.xda-developers.com/g5-plus/help/restore-imei-0-moto-g5-xt1687-t3739808
Even the TWRP Stock ROM destroyed my IMEI. Don't try
My phone keeps bugging me to install OTA update for krack vulnerability. I tried and it sent my phone to boot loop and now I have it restored. My phone has xposed installed. What is the best course of action? I would like to update but if that's not possible can I at least stop having the message show up each time I unlock my phone?
You could try to disable/freeze the Motorola-Updateservices (/system/priv-app/3c_ota/3c_ota.apk) or flash a new full (not OTA) firmware for your device without boot.img, recovery.img and without wiping data.
Beware: After flashing a full firmware, all modifications to the system partition are lost and have to be redone.
I always disable all 3c moto services and never faced problems because of it.
thorin0815 said:
You could try to disable/freeze the Motorola-Updateservices (/system/priv-app/3c_ota/3c_ota.apk) or flash a new full (not OTA) firmware for your device without boot.img, recovery.img and without wiping data.
Beware: After flashing a full firmware, all modifications to the system partition are lost and have to be redone.
I always disable all 3c moto services and never faced problems because of it.
Click to expand...
Click to collapse
Is that even safe not to apply the patch? I find it hard to believe just because you root your device you can't update it.
twoplustwo said:
Is that even safe not to apply the patch? I find it hard to believe just because you root your device you can't update it.
Click to expand...
Click to collapse
Is it a good idea to avoid security updates? No, it isn't. Is it clever to avoid updated drivers? No, it isn't (at least in most cases).
You should have informed yourself about the backdraws of rooting your phone before you did it. You need to be completely on stock firmware without any changes
to the system files to be able to use an OTA for updating your phone. This is needed to be safe the OTA update works the way it should.
The best way for updating a rooted phone is to install the full updated rom, which is easy to get for our device.
thorin0815 said:
The best way for updating a rooted phone is to install the full updated rom, which is easy to get for our device.
Click to expand...
Click to collapse
How can this be done? I don't know what to search for in these threads?
twoplustwo said:
How can this be done? I don't know what to search for in these threads?
Click to expand...
Click to collapse
Check this for example: https://forum.xda-developers.com/moto-g4-plus/how-to/stock-rom-npjs25-93-14-4-march-1-t3608138
thorin0815 said:
Check this for example: https://forum.xda-developers.com/moto-g4-plus/how-to/stock-rom-npjs25-93-14-4-march-1-t3608138
Click to expand...
Click to collapse
Some of my apps (like TI backup) need root. Is there a root for this version yet? I've tried searching but I find these forums very difficult to navigate.
twoplustwo said:
Some of my apps (like TI backup) need root. Is there a root for this version yet? I've tried searching but I find these forums very difficult to navigate.
Click to expand...
Click to collapse
Same procedure as on other stock rom versions): you need ElementalX kernel to be flashed and afterwards your desired root method(magisk is recommended).
Guides like this are valid https://forum.xda-developers.com/mo...de-root-moto-g4-plus-supersu-android-t3587918
Please mirror.
ui_print("Target: motorola/aljeter/aljeter:9/PPP29.41/b1fe5:user/release-keys");
Download
As far as I know, you must be on the Sept. patch. So, you must downgrade firmware first. It also appears to be for the Aljeter only, so I don't know if it'll work on the Jeter.
I am not responsible for any bricked devices.
1. Downgrade to OPP27.91-143 first.
2. Extract gpt_main0.bin from the ota zip and flash it in fastboot.
fastboot flash partition gpt_main0.bin
3. Reboot to recovery, and apply the OTA update from your sdcard.
4. Let the system restart. It'll take about 10min.
Could anyone verify?
Figures it's for Aljeter. Makes me wonder if Jeter will get it at all.
yes it is for aljeter and is working fine
Spaceminer said:
Please mirror.
ui_print("Target: motorola/aljeter/aljeter:9/PPP29.41/b1fe5:user/release-keys");
Download
As far as I know, you must be on the Sept. patch. So, you must downgrade firmware first. It also appears to be for the Aljeter only, so I don't know if it'll work on the Jeter.
These installation steps need confirmation. I am not responsible for any bricked devices.
1. Downgrade to OPP27.91-143 first.
2. Extract gpt_main0.bin from the ota zip and flash it in fastboot.
fastboot flash partition gpt_main0.bin
3. Reboot to recovery, and apply the OTA update from your sdcard.
4. Let the system restart. It'll take about 10min.
Click to expand...
Click to collapse
Tested and working on G6 Play do Brasil!
Up and running in UK. G6 Play XT1922-2, Carrier: ID Mobile (Carphone Warehouse), retgb.
Can't get root though, Magisk won't install for me in TWRP. Unable to mount storage or OEM. Not that fussed about that though.
Butter smooth, no glitches so far, no random reboots, battery life is great but still under observation.
Eddster3000 said:
Up and running in UK. G6 Play XT1922-2, Carrier: ID Mobile (Carphone Warehouse), retgb.
Can't get root though, Magisk won't install for me in TWRP. Unable to mount storage or OEM. Not that fussed about that though.
Butter smooth, no glitches so far, no random reboots, battery life is great but still under observation.
Click to expand...
Click to collapse
That's a Pie/Magisk problem. Easy fix...
1. Format /data in TWRP using the "yes" option. Then reboot directly back into recovery.
2. Mount /vendor then flash the universal dm-verity disabler by zackptg5.
3. Reboot directly into recovery once more and flash Magisk.
4. Reboot normally, and install the Magisk manager app manually. Done.
(Magisk should disable encryption and verity, but I've never had it work %100 of the time for both. Hence the disabler.)
Spaceminer said:
That's a Pie/Magisk problem. Easy fix...
1. Format /data in TWRP using the "yes" option. Then reboot directly back into recovery.
2. Mount /vendor then flash the universal dm-verity disabler by zackptg5.
3. Reboot directly into recovery once more and flash Magisk.
4. Reboot normally, and install the Magisk manager app manually. Done.
(Magisk should disable encryption and verity, but I've never had it work %100 of the time for both. Hence the disabler.)
Click to expand...
Click to collapse
Thanks @Spaceminer !!!! I'll give it a go. I thought at first that I might need to make some sort of patched boot image and faff about quite a bit but your instructions are clear and straightforward.
I must say I'm impressed with the G6 Play. I had a Nexus 6P and a Pixel both of which died on me from physical and customisation fatigue. I could afford a flagship so got this to see be through and I haven't had one complaint yet.
The handful of Pie features and esthetics have been implemented well by Motorola and battery life is still epic on this device.
Edit: rooted and fully set up how I usually have my daily driver handset. Pie is so tasty!
Eddster3000 said:
Up and running in UK. G6 Play XT1922-2, Carrier: ID Mobile (Carphone Warehouse), retgb.
Can't get root though, Magisk won't install for me in TWRP. Unable to mount storage or OEM. Not that fussed about that though.
Butter smooth, no glitches so far, no random reboots, battery life is great but still under observation.
Click to expand...
Click to collapse
Ta for taking the plunge and testing mate! Was beginning to think we'd never get this thing, glad to know it works on the same model number as I've got
Now to figure out the exact detailed step-by-step to getting this going, considering I'm actually on the November update...
picopi said:
Ta for taking the plunge and testing mate! Was beginning to think we'd never get this thing, glad to know it works on the same model number as I've got
Now to figure out the exact detailed step-by-step to getting this going, considering I'm actually on the November update...
Click to expand...
Click to collapse
Op is a step by step. Literally. Downgrade to Sept = Flash the build specified. Except the bootloader etc.
Flash the gpt.bin from the new build, apply update.
madbat99 said:
Op is a step by step. Literally. Downgrade to Sept = Flash the build specified. Except the bootloader etc.
Flash the gpt.bin from the new build, apply update.
Click to expand...
Click to collapse
Well yeah, I know that much. I meant the extra stuff like unlocking bootloader and downgrading the firmware etc lol. Ta for the extra info, mind.
Extra questions though because despite being having novice experience of doing phone flashing stuff, I've never touched a soak test for official firmware before...but I'm guessing I'll have to move back to Oreo temporarily to get the official Pie update...? Or will it just shift up from this soak test version?
Anyone get this working with the xt1922-7?
Donavonn said:
Anyone get this working with the xt1922-7?
Click to expand...
Click to collapse
No dice! The bootloader won't accept the gpt.bin. I think the recovery partition is the only thing that gets expanded though, so... I think if someone makes a back up of Pie in TWRP, then I can make it work on our phone. My idea is this.
1. Restore a Pie system backup using twrp, including the boot.img.
2. Use fastboot to flash the modem, oem.img, and vendor.img. Basically flash every part that isn't a patch file.
3. Hope that crap works.
I think that, or something similar would make it happen. I'll be the lab rat if someone wants to upload a system backup.
Spaceminer said:
No dice! The bootloader won't accept the gpt.bin. I think the recovery partition is the only thing that gets expanded though, so... I think if someone makes a back up of Pie in TWRP, then I can make it work on our phone. My idea is this.
1. Restore a Pie system backup using twrp, including the boot.img.
2. Use fastboot to flash the modem, oem.img, and vendor.img. Basically flash every part that isn't a patch file.
3. Hope that crap works.
I think that, or something similar would make it happen. I'll be the lab rat if someone wants to upload a system backup.
Click to expand...
Click to collapse
Haha yes! Someone get this guy a backup! Also, if it does work, the UI and everything can be changed to English, right?
Okay quick question, considering it was said "Flash the build specified except bootloader etc."; what is meant by "etc" here? Which parts of the older firmware should I avoid flashing. I know I gotta get in on that sparsechunk action but what about the other stuff like fsg, modem, boot etc? Sorry for asking what's probably a very obvious question but I don't wanna accidentally bugger my phone up trying to get this working
Donavonn said:
Haha yes! Someone get this guy a backup! Also, if it does work, the UI and everything can be changed to English, right?
Click to expand...
Click to collapse
Yes, it should be possible on the first setup. I think if it works, LTE probably won't without an APN edit. That's what happens when I flash xt1922-5 RETUS firmware anyways.
picopi said:
Okay quick question, considering it was said "Flash the build specified except bootloader etc."; what is meant by "etc" here? Which parts of the older firmware should I avoid flashing. I know I gotta get in on that sparsechunk action but what about the other stuff like fsg, modem, boot etc? Sorry for asking what's probably a very obvious question but I don't wanna accidentally bugger my phone up trying to get this working
Click to expand...
Click to collapse
Flash every part of the old firmware that you are able to. The bootloader and gpt.bin usually fail to flash if they are older than your current version. You should still try anyways. If they fail, just continue flashing the next items in line.
Spaceminer said:
Flash every part of the old firmware that you are able to. The bootloader and gpt.bin usually fail to flash if they are older than your current version. You should still try anyways. If they fail, just continue flashing the next items in line.
Click to expand...
Click to collapse
Righto. Just to clarify, I'm gonna need to unlock my bootloader to make this downgrade happen, right?
picopi said:
Righto. Just to clarify, I'm gonna need to unlock my bootloader to make this downgrade happen, right?
Click to expand...
Click to collapse
Official firmware should flash without any issue on a locked bootloader. That's my understanding. I don't know if this is %100 accurate. Every Motorola I've ever had, I unlocked the bootloader immediately. So, I've never had to test this.
Spaceminer said:
Official firmware should flash without any issue on a locked bootloader. That's my understanding. I don't know if this is %100 accurate. Every Motorola I've ever had, I unlocked the bootloader immediately. So, I've never had to test this.
Click to expand...
Click to collapse
Righto. In that case I'll report back with my findings, but yeah I'd imagine it should work fine as well. We'll see, fingers crossed.
EDIT 2: ISSUE SOLVED. Go to the bottom of this comment for how to get it done right. Credits to @rizkyxculture and @orma1
So I'm one of those people that just jumped onto the Pie release as soon as it came out, and realized only afterwards that it was by far the worst update I could've hoped for. It completely broke the focus on my GCam, (and added on top an absolutely crap UI that is in every way a downgrade from oreo's UI). I wasn't too depressed initally though, as I guessed I could easily downgrade to a previous stock version. Now after reading some posts here and there I realized that I cannot roll back my device thanks to some anti-rollback feature the Xiaomi gods implemented in Pie, and that rolling back results in a bootloop. I've seen some threads where they give a separate EFS file IIRC, but I'm quite skeptical about using it as it contains IMEI info that is unique to every device, so it might conflict with my own IMEI. Hence why I'm hesistant to flash my phone and probably face a repair bill involving a motherboard change as a consequence.
So my question is, what exactly should I do to safely revert back to Oreo (that absolutely guaranteed works, retaining IMEI and everything else), and if not, how can I fix GCam on this phone?
Aside from that I did check whether the anti-rollback feature was enabled or not using the commands, to be sure:
adb reboot bootloader
fastboot getvar anti
and got the result:
anti:
Which makes me think it's just some dud. So am I good to just flash the oreo xiaomi stock rom using xiaomi flash tool by unlocking the bootloader first?
EDIT: I'm running the March 5 security patch.
EDIT 2: Sorry for necroing this thread, but just to clear things up a bit, from my own experience, and include and clarify what @orma1 said below in this thread so you don't have to scroll down. Before all this, make sure you have SYSTEM WIDE ADB AND FASTBOOT INSTALLED for simplicity's sake.
All credits go to @orma1 and @rizkyxculture for your amazing efforts into this <3. None of it is mine, so thank them in their respective comments/threads if you wish to.
1. REMOVE ALL PASSWORDS AND FINGERPRINTS BEFORE PROCEEDING WHILE IN PIE, and do CLEAN DATA WIPE (do not choose the relock bootloader in Mi Flash Tool).
2. Do everything in that guide sent, and at the end, where rizky mentions flashing November update after the TWRP restore, don't do it. Instead, re-flash the March update. Thanks @orma1 for your comment. If your phone just straight up boots like mine did, without bootlooping, just power it off and go to fastboot again. Link to guide: https://forum.xda-developers.com/mi-a1/how-to/tutorial-downgrade-9-0-to-8-1-edl-imei-t3879624.
3. Once your phone boots normally, go to developer options, and uncheck the automatic system updates to prevent it from going to pie automatically later on. in the future. Install GCam at this stage if you wish (follow manual installation guide on XDA). Link: https://forum.xda-developers.com/showpost.php?p=75541654&postcount=98
4. After you've installed GCam (which is why you're probably doing all this in the first place, or not, regardless), chances are you still want to keep your warranty (and for security reasons) and therefore you should relock your bootloader, else the servicemen are just going to see that BIG warning at your phone's boot, and are likely revoke any warranty straight up. To do this, simply go back to fastboot and type the command below in Command Prompt and WHILE FIRMLY PRESSING AND HOLDING THE VOLUME DOWN BUTTON (or copy paste the line below WHILE FIRMLY PRESSING AND HOLDING THE VOLUME DOWN BUTTON):
fastboot oem lock
Once it says okay, type the following command:
fastboot reboot
Done. Now reboot, go to system update, and download and install the November update. Enjoy your still in warranty Mi A1 with Oreo and/or GCam (just make sure you uninstall the apk when giving it to the service center should you ever need to service it). Also, the power down button press prevents the auto data wipe function from activating. Have fun.
Also I have verified this works even on the April 2019 update. Just don't update any further, else I can't be sure.
Nafis-ul-Islam said:
So I'm one of those people that just jumped onto the Pie release as soon as it came out, and realized only afterwards that it was by far the worst update I could've hoped for. It completely broke the focus on my GCam, (and added on top an absolutely crap UI that is in every way a downgrade from oreo's UI). I wasn't too depressed initally though, as I guessed I could easily downgrade to a previous stock version. Now after reading some posts here and there I realized that I cannot roll back my device thanks to some anti-rollback feature the Xiaomi gods implemented in Pie, and that rolling back results in a bootloop. I've seen some threads where they give a separate EFS file IIRC, but I'm quite skeptical about using it as it contains IMEI info that is unique to every device, so it might conflict with my own IMEI. Hence why I'm hesistant to flash my phone and probably face a repair bill involving a motherboard change as a consequence.
So my question is, what exactly should I do to safely revert back to Oreo (that absolutely guaranteed works, retaining IMEI and everything else), and if not, how can I fix GCam on this phone?
Aside from that I did check whether the anti-rollback feature was enabled or not using the commands, to be sure:
adb reboot bootloader
fastboot getvar anti
and got the result:
Anti:
Which makes me think it's just some dud. So am I good to just flash the oreo xiaomi stock rom using xiaomi flash tool by unlocking the bootloader first?
EDIT: I'm running the March 5 security patch.
Click to expand...
Click to collapse
If you can't find documentation of anyone else successfully downgrading from Pie to Oreo with this specific device, then no one knows what is or isn't safe. In this case, you'll be taking a shot in the dark.
If you "can" find documentation of someone successfully downgrading, just do what they did.
Other than that, you'll have to blaze your own new trail.
Sent from my LGL84VL using Tapatalk
Droidriven said:
If you can't find documentation of anyone else successfully downgrading from Pie to Oreo with this specific device, then no one knows what is or isn't safe. In this case, you'll be taking a shot in the dark.
If you "can" find documentation of someone successfully downgrading, just do what they did.
Other than that, you'll have to blaze your own new trail.
Sent from my LGL84VL using Tapatalk
Click to expand...
Click to collapse
Guess I'll just stick to pie and bite the sand and live with it till someone gets a solid, working method...
As a second thought, if I make a backup of everything (system, boot, etc. etc.) in TWRP and then carry out the flashing process, will reflashing those backups restore my device in case of a brick?
Nafis-ul-Islam said:
So I'm one of those people that just jumped onto the Pie release as soon as it came out, and realized only afterwards that it was by far the worst update I could've hoped for. It completely broke the focus on my GCam, (and added on top an absolutely crap UI that is in every way a downgrade from oreo's UI). I wasn't too depressed initally though, as I guessed I could easily downgrade to a previous stock version. Now after reading some posts here and there I realized that I cannot roll back my device thanks to some anti-rollback feature the Xiaomi gods implemented in Pie, and that rolling back results in a bootloop. I've seen some threads where they give a separate EFS file IIRC, but I'm quite skeptical about using it as it contains IMEI info that is unique to every device, so it might conflict with my own IMEI. Hence why I'm hesistant to flash my phone and probably face a repair bill involving a motherboard change as a consequence.
So my question is, what exactly should I do to safely revert back to Oreo (that absolutely guaranteed works, retaining IMEI and everything else), and if not, how can I fix GCam on this phone?
Aside from that I did check whether the anti-rollback feature was enabled or not using the commands, to be sure:
adb reboot bootloader
fastboot getvar anti
and got the result:
Anti:
Which makes me think it's just some dud. So am I good to just flash the oreo xiaomi stock rom using xiaomi flash tool by unlocking the bootloader first?
EDIT: I'm running the March 5 security patch.
Click to expand...
Click to collapse
Just flashing oreo from pie should cause IMEI loss.
I used the method from here: https://forum.xda-developers.com/mi-a1/how-to/tutorial-downgrade-9-0-to-8-1-edl-imei-t3879624
although I had to do his method a little differently.
also make sure if you can to backup your data as you can lose it in the process.
first of all, after oreo march update flash, my phone did boot but with no IMEI.
second of all, flashing November update after restoring IMEI caused bootloop, instead you need to flash march update again. afterwards your phone should boot with the correct IMEI (you can double check with the one on your phone's box) . worked for me with two Mi A1s.
after all of this I was able to update to 8.1 November update via system update in the settings.
and lastly I made sure to disable automatic system update from developer settings.
Good luck!
Wanted to post same question.
As you described, there is method for downgrade but you are restoring someone else EFS partition, for that i am skeptical too.
Should we just downgrade as usual to Oreo using Mi Flash Tool? Or that thread is the only way of downgrading to Oreo?
Will i backup my IMEI if i backup EFS partition trought TWRP (Running Lineage OS 16.0)
Meme :D said:
Wanted to post same question.
As you described, there is method for downgrade but you are restoring someone else EFS partition, for that i am skeptical too.
Should we just downgrade as usual to Oreo using Mi Flash Tool? Or that thread is the only way of downgrading to Oreo?
Will i backup my IMEI if i backup EFS partition trought TWRP (Running Lineage OS 16.0)
Click to expand...
Click to collapse
I was skeptical at first too, but after using this method I compared the new IMEI to the one I have on the phone's box and they matched.
So this method restores your IMEI and not the IMEI of the one who created the backup.
Downgrade as usual resulted for me in lost IMEI (which means the phone is basically useless because the sim bluetooth and wifi don't work) so you shouldn't do it.
Using the method you talked about you restore boot and efs. boot will probably won't be the same as it's not the same android version and it is also a custom rom.
Anyways, using the method I sent should help you downgrade to stock oreo successfully with your IMEI.
orma1 said:
I was skeptical at first too, but after using this method I compared the new IMEI to the one I have on the phone's box and they matched.
So this method restores your IMEI and not the IMEI of the one who created the backup.
Downgrade as usual resulted for me in lost IMEI (which means the phone is basically useless because the sim bluetooth and wifi don't work) so you shouldn't do it.
Using the method you talked about you restore boot and efs. boot will probably won't be the same as it's not the same android version and it is also a custom rom.
Anyways, using the method I sent should help you downgrade to stock oreo successfully with your IMEI.
Click to expand...
Click to collapse
Thanks, will see about all this.
orma1 said:
I was skeptical at first too, but after using this method I compared the new IMEI to the one I have on the phone's box and they matched.
So this method restores your IMEI and not the IMEI of the one who created the backup.
Downgrade as usual resulted for me in lost IMEI (which means the phone is basically useless because the sim bluetooth and wifi don't work) so you shouldn't do it.
Using the method you talked about you restore boot and efs. boot will probably won't be the same as it's not the same android version and it is also a custom rom.
Anyways, using the method I sent should help you downgrade to stock oreo successfully with your IMEI.
Click to expand...
Click to collapse
Sorry for my delayed response firstly, I'm currently in the countryside and the network here is *God awful*. I'll definitely check this out when I get back home this Saturday hopefully. How did you back up though? Did you boot temporarily to TWRP in fastboot and then backup everything to an external storage?
Nafis-ul-Islam said:
Sorry for my delayed response firstly, I'm currently in the countryside and the network here is *God awful*. I'll definitely check this out when I get back home this Saturday hopefully. How did you back up though? Did you boot temporarily to TWRP in fastboot and then backup everything to an external storage?
Click to expand...
Click to collapse
I used the backup from this thread
https://forum.xda-developers.com/mi-a1/how-to/tutorial-downgrade-9-0-to-8-1-edl-imei-t3879624
It's a backup of someone else's efs and boot patiotions. At first I thought too that restoring someone else's backup should result in me getting his IMEI.
But after trying to restore through this backup My IMEI changed from 0 to the one on my phone's original box meaning I got my own IMEI. the method there worked perfectly for me and now I am rocking 8.1 Oreo November update with Magisk and TWRP. the only thing is that following step 10 in the tutorial there resulted in a bootloop for me. Instead I followed the suggestion of one of the comments saying that instead of flashing November update after restoring IMEI you need to flash the same March update you flashed before. this time my phone booted with IMEI and I updated to 8.1 November through OTA.
Did you downgraded succesfully?
Meme :D said:
Did you downgraded succesfully?
Click to expand...
Click to collapse
I was able to downgrade successfully following this guide: https://forum.xda-developers.com/mi-a1/how-to/tutorial-downgrade-9-0-to-8-1-edl-imei-t3879624
In step 10 you need to flash oreo march update again and not November update as mentioned as flashing November update caused me bootloop.
afterwards you can update to November update via System update in the settings.
besides this I followed the tutorial exactly and was able to downgrade two Mi A1s.
I have successfully downgraded my Mi A1 with this thread
"Tutorial Downgrade 9.0 to 8.1 No EDL, No IMEI Problem & No Signal Problem"
Also im a 14 Yr old nearly 15 on April 20.
I was afraid too, now I'm on Nougat )
Just follow this tutorial : https://forum.xda-developers.com/mi-a1/how-to/tutorial-downgrade-9-0-to-8-1-edl-imei-t3879624
Before doing anything, boot TWRP and create a full backup of your system, after that transfer it to your PC. Probably you don't need it but better safe than sorry.
After you will flash March firmware, your phone will boot but you will not have signal, it's okay. Thing is, you don't lose the IMEI, it's still there, but somehow you lose the signal. Boot TWRP again, create a backup of your boot and EFS, you will see TWRP folder in your phone, go there and you will see a backup. Remove your backup files and replace them with the one from the guide, then you can restore them without issues (you will see a modem error, ignore it). Restart and let it boot a bit, then go to bootloader again, flash March firmware again (don't flash the November one! ignore that from the guide) and the signal will be back. If you do this, I doubt you will lose your IMEI somehow. I never lost mine, it's the same from the box.
Good luck! Make sure you go in developer settings after and disable automatic updates or you will be back to Pie. I rooted my phone so it can't update.
Just flashed it now, and it's working perfectly as orma1 described. I can't thank you enough <3
Nafis-ul-Islam said:
Just flashed it now, and it's working perfectly as orma1 described. I can't thank you enough <3
Click to expand...
Click to collapse
I'm happy to help
but all the credit goes to rizkyxculture for finding this method and ibooth2004 for correcting us to flash March update again instead of the November one.
so glad i read this and got the courage to go back, now downloading november ota, pie on this device is so bad, and cant even use gcam.
Marcos OC said:
so glad i read this and got the courage to go back, now downloading november ota, pie on this device is so bad, and cant even use gcam.
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Click to collapse
I agree the system's performance on pie is horrible and also the mic volume is low which is very annoying.