Bootloop on a locked Z1 - Zuk Z1 Q&A, Help & Troubleshooting

Hello,
I am writing this thread for a friend of mine. He owns a Z1 - stock ROM, locked bootloader.
Today it started looping and I tried to fix it (telling him over a chat what to do). It goes through the bootanimation and then dies or while optimizing apps, or while starting them.
What we tried:
1) Wipe cache
2) Factory reset
3) adb sideload the current official CM onto it
Nothing helped, the error stays the same. We also tried this http://forum.xda-developers.com/showpost.php?p=64458076&postcount=4 but it never really recognised the phone (despite using the correct drivers and following the procedure) - it did not appear under ports (Windows 10?).
Is there any other way to unlock this goddamn phone? My Androids so far had an easily unlockable bootloader via fastboot. This would have, too, but in order to unlock the bootloader via fastboot you first have to allow this in the developer settings - which we can not reach due to the loop.
If you know some way to get a working ROM onto it, we would be very happy. In the end we will end up unlocking the bootloader and flashing another Recovery and ROM anyway. We only need some way to achieve this. I expect the way to do this will be the QPST thingy. Any ideas why it did not recognise the phone? He does not own a PC with another OS than Win10...
Thanks in advance for your help,
Moritz
EDIT: Looks like the sideload did work - after tens of reboots it finally succeeded and bootet straight into the ROM.
Took a lot of attempts, strangely.
Proceeding to unlock it

Mine does the same boot loop on CM13. After tons of different tries to fix it, i think it could have something to do with my fingerprint sensor which is not working anymore.
Maybe there is some kind of hardware malfunction and android crashes while initializing that piece of hardware.

Related

Mi A1 stuck at MI logo page

Alright. just to get this out of the way, I used to do tech support for HTC many moons ago. like back when they were *the* name in originating new tech to smart phones. I worked my ass off to get into the R&D team that handled all the new products that got released and to our product recovery team(the idiots that try to put a good light on a bad decision made by corporate). I have rooted and installed custom ROMS and recovery software on several phones from them as well as since then with the latest being my old galaxy S7 loaded up with TWRP and lineagoe OS(although i do not remember which version now)
But i did not do literally *ANY* of that with my Xiaomi MiA1. the phone functioned how i wanted it to out of the box and with the stock ROM, i had no need or desire to do anything with the ROM.
I have all but completely given up on doing this on my own now. I have gone over every guide on the MI forums for xiaomi and i think i may have even exhausted the ones that are available here now too. I am not sure WTH the problem at this point even is but here is the lowdown:
:fingers-crossed:
got the update near the end of December/beginning of January to update my MI A1 to the new android pie version that just came out OTA(i actually have two of these phones, one i have not updated since the first update to oreo, and this one that is hardbricked from after the PIE update)
At first when i got the OTA update, my phone started to act sluggish. simple apps like messenger, or google drive that had always worked flawlessly suddenly were taking ages to load. So like any sensible person, i pulled my info to my SD card, took it out, and then did a system recovery to restore factory defaults and start with a fresh OS again, just like when windows starts behaving poorly.
only this did not fix the problem. It persisted with poor performance after the factory data reset and upon my next reboot, my phone just stopped loading when it got to the MI logo on the screen. i literally let the phone sit on this screen overnight thinking just maybe it was being slow to boot after the reset. No luck and in the morning it remained at this screen.
just to make a note:
-phone was purchased off of amazon, i have reached out to the seller(it was a business)
-phone is in CANADA, so there are no service centers
-i CANNOT enter recovery mode(pwr + volup + voldn), it just freezes at the mi screen
-i CAN enter fastboot, but cannot flash room
-bootloader is locked and i have not yet found a method that will successfully unlock it
-the miflash tool does not work(on any version what-so-ever)
-the mi unlock tool gets to 50% and then fails, cannot unlock
-i have installed minimal adb for fastboot, none of the related commands succeed(yes system sees the phone:
c:\adb>fastboot devices
91c0963c0804 fastboot)
-i cannot unlock bootloader here and cannot install twrp or any other recovery image and it will not allow it even temporarily
I've gotten desperate enough to have even gone to the extreme and tried EDL mode by using test point to enter, computer recognizes the device even as the qualcom 9008, still no luck with any of the tools or ROMs provided on Xiaomi's website.
So be real with me here ladies and gents.... should i take this thing on my next trip up a telecomm tower and biff it as hard as i can at the ground(obviously in a snowless area for the most satisfaction) or can you saintly people actually offer me some support on this to turn my brick paperweight back into a phone again?
it is also worth mentioning that this is my first post here because i have never before had a problem with following any of he guides on here to accomplish any task i've ever set out to do with an android device, but this beastly lil mother is seriously making me consider becoming an iphone person(not really but do you get the frustration here?)
I'm writing this at 5:30 in the morning after being up all night working on this task so if my info is missing somewhere along the line just poke me with stick and i will fill in the blanks as needed.
I couldn't be bothered to get and load screenshots tonight but i will get some up tomorrow after sleep, for now i am going to the graveyard to rest.
Thanks for any responses in advance here.
What error show miflash when you try to flash in edl mode?
balannaer said:
Alright. just to get this out of the way, I used to do tech support for HTC many moons ago. like back when they were *the* name in originating new tech to smart phones. I worked my ass off to get into the R&D team that handled all the new products that got released and to our product recovery team(the idiots that try to put a good light on a bad decision made by corporate). I have rooted and installed custom ROMS and recovery software on several phones from them as well as since then with the latest being my old galaxy S7 loaded up with TWRP and lineagoe OS(although i do not remember which version now)
But i did not do literally *ANY* of that with my Xiaomi MiA1. the phone functioned how i wanted it to out of the box and with the stock ROM, i had no need or desire to do anything with the ROM.
I have all but completely given up on doing this on my own now. I have gone over every guide on the MI forums for xiaomi and i think i may have even exhausted the ones that are available here now too. I am not sure WTH the problem at this point even is but here is the lowdown:
:fingers-crossed:
got the update near the end of December/beginning of January to update my MI A1 to the new android pie version that just came out OTA(i actually have two of these phones, one i have not updated since the first update to oreo, and this one that is hardbricked from after the PIE update)
At first when i got the OTA update, my phone started to act sluggish. simple apps like messenger, or google drive that had always worked flawlessly suddenly were taking ages to load. So like any sensible person, i pulled my info to my SD card, took it out, and then did a system recovery to restore factory defaults and start with a fresh OS again, just like when windows starts behaving poorly.
only this did not fix the problem. It persisted with poor performance after the factory data reset and upon my next reboot, my phone just stopped loading when it got to the MI logo on the screen. i literally let the phone sit on this screen overnight thinking just maybe it was being slow to boot after the reset. No luck and in the morning it remained at this screen.
just to make a note:
-phone was purchased off of amazon, i have reached out to the seller(it was a business)
-phone is in CANADA, so there are no service centers
-i CANNOT enter recovery mode(pwr + volup + voldn), it just freezes at the mi screen
-i CAN enter fastboot, but cannot flash room
-bootloader is locked and i have not yet found a method that will successfully unlock it
-the miflash tool does not work(on any version what-so-ever)
-the mi unlock tool gets to 50% and then fails, cannot unlock
-i have installed minimal adb for fastboot, none of the related commands succeed(yes system sees the phone:
c:\adb>fastboot devices
91c0963c0804 fastboot)
-i cannot unlock bootloader here and cannot install twrp or any other recovery image and it will not allow it even temporarily
I've gotten desperate enough to have even gone to the extreme and tried EDL mode by using test point to enter, computer recognizes the device even as the qualcom 9008, still no luck with any of the tools or ROMs provided on Xiaomi's website.
So be real with me here ladies and gents.... should i take this thing on my next trip up a telecomm tower and biff it as hard as i can at the ground(obviously in a snowless area for the most satisfaction) or can you saintly people actually offer me some support on this to turn my brick paperweight back into a phone again?
it is also worth mentioning that this is my first post here because i have never before had a problem with following any of he guides on here to accomplish any task i've ever set out to do with an android device, but this beastly lil mother is seriously making me consider becoming an iphone person(not really but do you get the frustration here?)
I'm writing this at 5:30 in the morning after being up all night working on this task so if my info is missing somewhere along the line just poke me with stick and i will fill in the blanks as needed.
I couldn't be bothered to get and load screenshots tonight but i will get some up tomorrow after sleep, for now i am going to the graveyard to rest.
Thanks for any responses in advance here.
Click to expand...
Click to collapse
take your sd card off your phone i had similar issues and fixed them that way
ccalixtro said:
What error show miflash when you try to flash in edl mode?
Click to expand...
Click to collapse
it depends on which version of the flash tool is used. the beta version of the flash tool claims that it is successful, but the phone will not load to the Android OS after that is completed and it still will not load into the recovery mode to attempt to factory reset or anything else.
other versions have given errors:
miflash 2017.7.20.0 gives the response after attempting for about 10 seconds of "ACK count don't match!"
miflash 2018.11.15.0 gives the error response of "cannot receive hello packet"
and as stated before the miflash beta goes through the complete flash process with the result stating a "success" response, but the phone will not load to OS, just remains stuck on the MI logo screen when the phone is booting up
i have some screen grabs of all this but i am not yet worthy through XDA to be permitted to share them
thanks for the reply
kuartito said:
take your sd card off your phone i had similar issues and fixed them that way
Click to expand...
Click to collapse
i dismantled the phone manually bro, when you use EDL mode this way the SIM/SD tray is removed you then remove the entire backplate and then disconnect the battery cable from the circuit board and you use the test point method to short two pins that force the system to start in EDL mode when you connect the usb-C cable, so unfortunately that is not the issue :crying:
it never seems to be the simple solutions
Thanks for the reply!
Still dead in the water on this one.
Going to look into getting a replacement, that is a disappointing end to the Xiaomi experience
Facing similar issue. Am able to flash however still stuck when device is rebooted with this message;
Supported API: 3
E: Failed to clear BCB message: failed to FSync/dev/block/bootdevice/by-name/miscperation not permitted.

Essential soft brick, any way to unlock flash from fastboot to sideload OTA?

Hello I am posting in Q&A because I'm a new XDA user, I was not allowed to post in the dev channel.
I have an Essential phone that has been working great for the past few years, no issues, and it was running standard build receiving OTA updates, until the very last update, which soft bricked the phone.
The phone was never enabled in developer mode while in Android, and now, I can't boot the phone into android at all. The only thing I can do is get into fastboot.
Fastboot state shows DEVICE STATE - locked
Any commands I try to unlock flashing, or change slots, anything at all, I get the error that the device is locked so all commands to unlock fail.
Is there any way to unlock device state from fastboot? I saw a youtube video showing a way to use a chopped USB cable to enter emergency / EDL mode for Qualcomm-based Android devices, but have not seen anyone post that this was successful with the Essential
Does anyone know of any method to be able to unlock flashing from fastboot? Or any other method to un-brick an essential? I've attempted everything, on both Mac and PC, nothing works.
On mac or PC, I can query the device in fastboot and get a response, I just can't do anything to unlock anything!!
Many thanks in advance for any suggestions!
Same problem
Same thing happened to me. Same day as you. I can get fastboot but not adb but since the device is locked I can't flash. I've only had the phone about 6 months so I contacted customer support and they offered to replace the phone.
It might be a known issue because they didn't even try to address the fact that I could get fastboot connected but not adb. They just offered to replace.
Thanks for the info! I am -at least in this case- unfortunately an early adopter. I bought two essentials at the beginning of the pre-release.
Essential support checked my serial number and said the phone was out of warranty.
Has anyone been able to force the Essential into EDL mode to recover that way? It looks like you have to latch one of the USB pins to ground, or 5V, but I haven't found any detailed instructions on how to make this work on the essential...
Thanks again
Justin
I'm sure things have changed and I'm wrong, but if you can get into the fastboot menu can't you just cycle through the options until you get to recovery and then flash an official release from Essential?
I may be thinking of LG or something but this should be possible as long as it's newer than the current software installed because it will see it as an official update and allow the flash.
Thanks but unfortunately, when I try and do that, the phone just does the same thing, it hangs forever on the initial boot screen white Android text with the circle/square logo...
That's why I've been looking into the more direct hardware version of forcing the phone into EDL mode, which is supposed to be possible with all Qualcomm based phones.
I've just not found the time yet to find a USB-C cable I'd be happy to cut in half and short the pins on! Which is why I was hoping someone might have tried this with an essential before to know if it was successful before I start trashing good cables
Thanks again for your reply!
JB
justinbaird said:
Hello I am posting in Q&A because I'm a new XDA user, I was not allowed to post in the dev channel.
I have an Essential phone that has been working great for the past few years, no issues, and it was running standard build receiving OTA updates, until the very last update, which soft bricked the phone.
The phone was never enabled in developer mode while in Android, and now, I can't boot the phone into android at all. The only thing I can do is get into fastboot.
Fastboot state shows DEVICE STATE - locked
Any commands I try to unlock flashing, or change slots, anything at all, I get the error that the device is locked so all commands to unlock fail.
Is there any way to unlock device state from fastboot? I saw a youtube video showing a way to use a chopped USB cable to enter emergency / EDL mode for Qualcomm-based Android devices, but have not seen anyone post that this was successful with the Essential
Does anyone know of any method to be able to unlock flashing from fastboot? Or any other method to un-brick an essential? I've attempted everything, on both Mac and PC, nothing works.
On mac or PC, I can query the device in fastboot and get a response, I just can't do anything to unlock anything!!
Many thanks in advance for any suggestions!
Click to expand...
Click to collapse
I have the exact same problem,
My phone is stuck on Essential log when I turned it on,
I can access Bootloader normally but the device is locked so I cannot flash it,
Recovery is corrupted, when I try to star it, it shows only the the Essential log and freeze so I can not format or wipe or sideload.
OEM Locked and unchecked
USB Debugging is unchecked
and I can't flash anything,
Did you managed to unlock it through Fastboot command or any other way ?
I wish I can just login to the recovery or unlock it so I can flash it clean,
Kindly help me if you found a way out
Thank you

Stuck in rescue mode after tried flashing stock firmware

Good evening! I hope you can help me.
I flashed LineageOS 14.1, but I wanted to go back to EMUI. I made all the wipes and tried to flash different stock firmwares through a forced update (volume buttons + power button), but it never worked. At that point, I read about a guy in this forum who suggested to create a flashable zip with Huawei Update Extractor: I followed the suggestion and tried to flash it with TWRP. No error was given, but when I tried to restart, TWRP told me I had no OS installed. I thought it was strange, so I tried to restart anyway. That's when I got in rescue mode. I can't get into the recovery and I can't use fastboot. What rescue mode shows me is:
RESCUE MODE
Attention!
Please update system again
Update User Guide:
*link*
*android avatar*
Error!
Func NO: 10 (boot image)
Error NO: 2 (load failed!)
Pressing the three buttons, I'm able to force an update. The problem is I can't find a firmware that doesn't get rejected. With Lollipop firmwares, it starts to install, but it fails at 12%. With Marshmallow ones, the installation process doesn't even start.
What can I do to make it work again? I'm very sad because this phone was gifted to me a couple of days ago and I already messed it up. I don't even know how to turn it off.
What can I do to get in fastboot mode? At that point, what should I do to flash the stock firmware? Or maybe do I need to find the first stock firmware ever installed into this phone to make the forced update work?
Please, I need help. Thank you in advance!
P.S. The phone's model is ALE-L21. I live in Italy, so I assume it's a European version.
Did you managed to fix this?
Jhon_Locke said:
Did you managed to fix this?
Click to expand...
Click to collapse
Not yet, but I'm working on it. I found out that the device is recognized by my PC if I follow these steps:
1. Connect the phone to the PC and wait for it to go in rescue mode;
2. Wait until the notification LED stops to blink;
3. Disconnect the USB cable;
4. Press volume - and power button;
5. Reconnect the cable.
At that point, the screen turns black and the phone is recognized as "㄰㌲㔴㜶㤸". I installed the drivers and now it's recognized as "HUAWEI USB COM 1.0". I should be able to reflash the partitions and make my phone work again, but I'm still trying to understand how to do it correctly.
Any help is appreciated!
ErikChimello said:
Not yet, but I'm working on it. I found out that the device is recognized by my PC if I follow these steps:
1. Connect the phone to the PC and wait for it to go in rescue mode;
2. Wait until the notification LED stops to blink;
3. Disconnect the USB cable;
4. Press volume - and power button;
5. Reconnect the cable.
At that point, the screen turns black and the phone is recognized as "㄰㌲㔴㜶㤸". I installed the drivers and now it's recognized as "HUAWEI USB COM 1.0". I should be able to reflash the partitions and make my phone work again, but I'm still trying to understand how to do it correctly.
Any help is appreciated!
Click to expand...
Click to collapse
fastboot detects your device when you plug it into your computer?
I mean, if you run "fastboot devices" it shows your phone?
I've had this same problem but with an P8 Lite 2017, after flashing some ROM that supposedly was the stock one and trying to flash recovery I ended up with my phone bootlooping into rescue mode, I was able to "bypass" this thing rebooting my phone like crazy, seriously like after 20 reboot it finally booted into the damn ROM and I never touched the phone again. Sometimes when the phone ran out of battery and tried to power it on the phone booted into rescue mode and again after some reboots it booted to Android but now I want to install a custom ROM or at the very least root this damn phone so that's why I'm asking you if you have solved this, if you do then probably if I follow the same steps I would be able to fix that screen, hopefully.
If you are able to flash something start with flashing all recoveries your update.app has, maybe that's the problem (at least in my phone it is).
Jhon_Locke said:
fastboot detects your device when you plug it into your computer?
I mean, if you run "fastboot devices" it shows your phone?
I've had this same problem but with an P8 Lite 2017, after flashing some ROM that supposedly was the stock one and trying to flash recovery I ended up with my phone bootlooping into rescue mode, I was able to "bypass" this thing rebooting my phone like crazy, seriously like after 20 reboot it finally booted into the damn ROM and I never touched the phone again. Sometimes when the phone ran out of battery and tried to power it on the phone booted into rescue mode and again after some reboots it booted to Android but now I want to install a custom ROM or at the very least root this damn phone so that's why I'm asking you if you have solved this, if you do then probably if I follow the same steps I would be able to fix that screen, hopefully.
If you are able to flash something start with flashing all recoveries your update.app has, maybe that's the problem (at least in my phone it is).
Click to expand...
Click to collapse
No, it doesn't show anything if I write that command...
I guess mine won't ever boot into the rom because it seems like there's no system installed. I made some researches and found out there are some softwares that let you reflash the partitions IF the phone is recognized as "HUAWEI USB COM 1.0". I'm still trying to figure out how to do it correctly though. I feel like if I do something wrong, then my phone won't probably turn on again.
In your case, you should be able to flash a custom rom without any issue. You just have to be very careful and inform you as much as you can: I don't want your phone to end up like mine?. Anyway, it seems pretty hard to go back to the stock rom, so think about it before you flash a custom rom. Also, make a Nandroid Backup is very important.

Help needed Asus Zenfone 3 Max ZC520TL FRP

Hi all. So I have a frustrating issue with my phone after having updated to the last official firmware from the Asus website. I noticed that the phone operation was very slow, so I decided to do a factory reset from recovery. Everything went well until I am somehow locked out of my phone via FRP. The weirdest thing is that instead of asking for google credentials, it's asking for a pattern, which I am correctly inputting but it refuses to recognize it. So now I'm stuck with a locked out phone. Am I SOL at this point or is there a way to get past this other than taking it to a service center?
Things I've tried that haven't worked:
1. tried to erase user config in fastboot (returned error FAILED)
2. wiped all data in recovery
3. tried to flash to an older version via asus flashtool but didn't work as the device isn't recognized
Any help would be greatly appreciated.
xenoche said:
Hi all. So I have a frustrating issue with my phone after having updated to the last official firmware from the Asus website. I noticed that the phone operation was very slow, so I decided to do a factory reset from recovery. Everything went well until I am somehow locked out of my phone via FRP. The weirdest thing is that instead of asking for google credentials, it's asking for a pattern, which I am correctly inputting but it refuses to recognize it. So now I'm stuck with a locked out phone. Am I SOL at this point or is there a way to get past this other than taking it to a service center?
Things I've tried that haven't worked:
1. tried to erase user config in fastboot (returned error FAILED)
2. wiped all data in recovery
3. tried to flash to an older version via asus flashtool but didn't work as the device isn't recognized
Any help would be greatly appreciated.
Click to expand...
Click to collapse
Ok i had the exact problem the latest patch for the device , i manually updated to oreo 8.1, has some bug that sometimes it doesnt recognise pin or pattern after some reboots it recognized it but it's not persistent as it stopped working.
I was able to fix it by flashing an older version with sp flashtool. You need to download and properly install SPFlashtool and everything it needs then you have to search for an spflashable rom that it's compatible with the one you have.

(Help) EDL Test Points needed or a solution on G6+

So, basically I will make this short as possible
Due to some problems I had to sell my G6 Plus (Brazilian -8 model) but it was on a custom rom, and did the most dumb thing that I could do: Reflashing pure stock and locking it, I've used the LMSA tool then relocked in Fastboot, the thing is some files were corrupt and when locked, it doesn't boot up anymore, as i still had hope for it, I tried to LSMA again, but it doesnt recognize anymore, as the lock flag is now "Flashing_Locked", flashing manually via Fastboot gives a error related to the lock flag (also LSMA resets the device, so using my unlock key asks to enable OEM Unlock at settings, a impossible thing when OS is broken) , then searched for some solutions, first it was booting a Boot.img file from the last stock, which was the flashed one, it bootloops, then tried something on the recovery that works, but is the stock one and pretty limited, so the logical thing to do is flashing a OTA file, but only works for old versions that requires one version before the target one, so its a no go. The last thing i tried to do is booting TWRP, but it gets stuck on a red warning that indicates that system is corrupt. Then the last hope was EDL Mode, and thats the point where i want to go, i've bought a EDL Cable that's basically a green and black wire thing used on most Qualcomm based Redmi/Xiaomi devices, but it automatically boots to fastboot, so I need help to get EDL Test Points for this device, im with access to the board, i just need the right Pads to short-circuit it and blankflash it, so i can finally get it to work like normal again.
Schematics (for people who understands): https://androidfilehost.com/?fid=4349826312261726244
Any help is important, I'm sorry for some typos, english isnt my main language considering i didnt use translate
and please don't come with instructions like "have you tried LSMA?, try booting up the device and select oem unlock" because its clear that it doesnt work.

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