AC8227L - Mediatek components + unknown MCU - Bricked device help from PCB pictures - Upgrading, Modifying and Unlocking

Hi all,
So I managed to successfully root and dump various bits of firmware etc over the past few weeks and generally had no issues(apart from the LED front panel lights not working(did at first), which is the main reason I was trying to rectify) - I have flashed from USB using a .bin also dumped preloader and rom etc via a scatter file using SP Tools after finding a rom entitled 8277L in the filenames, this worked perfectly(but still without the LEDS's) - Link to bought device(a cheap chinese one) - https://www.ebay.co.uk/itm/Single-On...53.m2749.l2649
Main issue: Now I have bricked it - I selected the format all part in SP-Tools thinking it would allow me to flash from fresh to stop the stock and TWRP recovery from timing out(I successfully ported TWRP over, but after about 30-40 seconds it was rebooting the device, bizarre!) - When the head unit is powered on it turns on the display but that is all, just a light black screen. I've tried recovering again via USB and SP tools but I think I'm almost out of luck. SP Tools doesn't read from the device or detect it, and yes I have the correct drivers installed under Windows. No screen swiped or button presses help in getting into any bootloader or update mode.
I am really hoping, anyone could help identify the UART pins on the board - yes I've now taken it all apart - in the hope I can flash a bootloader image which I guess is what is now wrong and has been erased??
I've really been digging into this and researching on Russian websites and getting lot's of interesting information including from XDA thankfully, but not this issue. I have included some pretty much hi res images, some are dark but I have redone some, everything is readable but I've googled and googled for model/part/serial numbers etc and have had no results that helped to indentify where I could potentially find the UART connection.
If anyone has the same unit or similar it would be great to share the knowledge so perhaps we can help bring the info together and help other debrick this device if there are any!
Many thanks, for anyone who cares take a look!
https://imgur.com/a/8Qz8ESP - all high res images
AC8227L - Mediatek components + unknown MCU - Bricked device help from PCB pictures

info
hi,
i have the same problem , i don't know how to fix it

info
please check this
4pda.ru/forum/index.php?showtopic=930058&st=160#entry81152859

forteon said:
please check this
4pda.ru/forum/index.php?showtopic=930058&st=160#entry81152859
Click to expand...
Click to collapse
Thank you, will try this out.

Related

Bootloader dead / Recovered

Hi,
I made a mistake with flashing QTEK S200 with wrong file.
Bootloader was modified. Device can not start at all.
It can not even go to bootloader screen (red-green-blue).
As consequence, no USB connection can be established.
What is the solution? I guess utilities can not be used, because they assume connection to USB, but there is no connection.
Not big deal, because it was not working well anyways, but would be interesting to know a solution in this case. Many ppl. would be happy to know how to manage this situation, I guess.
later.
Not very good news, service center said they don't know how to fix it, but kept the device to make few things with it.
Clearly, bootloader was overwritten.
Will see. Somehow they manage to identify type of rom is installed from i-mate.
So, think before you make any flashing
re: another service said they will do whatever needed, up to replacing chip with flash. I am not ready to go that far yet.
feel like i am missing something
It appears to be a real problem with flash.
No connection to computer with USB.
With power supply connected blue-green-?? screen, but I cannot connect to PC of course.
With USB cable connected blue-green-?? screen does not come up.
I figured out that pins 4 and 5 are shorten when power supply is connected. I did this with USB connection to PC, but still not connected.
For sure, USB is not functioning on device.
Will get new device, but very interested on how to repair this one. I disassembled it completely. There is no way to replace the flash chip at home, you need specific equipment and chip, of course.
What I need is surcuit diagram for S200 or similar, particularly part of diagram related to flash, radio module is not needed. Is there any possibility to get it? If I have it, I think can reprogram chip.
Thanks.
Hm. It looks like extreemly difficult to get pins layout on motherboard.
JTAG is the only solution left to access chips direct. But we need to know where JTAG pins on motherboard.
Recovered S200.
Finally very good news!
Prophet S200 was succesfully recovered with help of Arc.
He managed to discover JTAG pins, afterwards re-flashed SPL and ROM.
REALLY GOOD JOB!
Want to say special THANKS to Arc!!!
Device go live again.
Until next experiment....
But procedure to recover is in place.
Regards,
fdp24
i have a dead one too
Hi there,
I have a dead one too can you tell me how to fix it please?
dead, as in my ppc k-jam is dead
basically it hangup and i soft restarted, tried hard reset. it didnt help either. i tried restoring to factory default same thing it hangup. now it doesnt shows any signs of life . i lost my life, my buddy.
My Orange SPV M2000 will not start anymore after update. I only see Serial (on top)............ V2.07 (underneath)
I tried to update my ORANGE SPV M2000 to Tmobile's newest rom by extracting the exe. file and using maUpdateut. It started well and all of a sudden gave error "country code................"
You will not be able to fix it yourself.
Equipment and phone required physically in order to connect jtag interface and re-flash DOC.
Sorry, but this is the only solution if your bootloader is damaged.
Of course, you can try to ship it to service center. If you are lucky they will change your device. This might more simple.
Good luck.
fdp24 said:
You will not be able to fix it yourself.
Equipment and phone required physically in order to connect jtag interface and re-flash DOC.
Sorry, but this is the only solution if your bootloader is damaged.
Of course, you can try to ship it to service center. If you are lucky they will change your device. This might more simple.
Good luck.
Click to expand...
Click to collapse
I know how to open device and solder some wires to testpoints. Do you have any information where the pins are located and what software and what JTAG adapter you used? I really need to get my phone working again. It was quite expensive to purchase and to ship it to my country. Please don't destroy my hope.
hello friends,
my cousin recently buy O2 XDa ( wallaby ) for cheap one, i check on device it seems cann't boot to windows but if i hard reset and came up red, green, blue and if i press ok it came up with test all thing i confuse all the test is OK, can you all tell me how to repair the phone and waht is the problem?
thank you
dead device hope on the horizon
note my device and troubles is on the xda2
hi - i have had exactly the same issue - i have managed to reload the rom i was trying to swop and here is what i did .... it took ages and lots of patience and it is not an exact work of science but if you try my method 2 or three times it actually comes back to life ... honest !!
down load an xda2i ( yes xda2i )rom extract it using winrar or zip on your pc place dead xda2 into cradle regardless of whats on screen run himupgradenoid - the rom will run and start to load onto your device it will fail once it has failed remove xda but do nt reset - take copy of original rom which was on the device prior to your failed upgrade and extract as above. replace xda into cradle might be detected or not dont worry - run the himupgradeut from your previous working rom and wait it takes ages to connect but eventually heypresto ... you will have a working device. i know cos i done it !!! - i have not resolved all my problems yet - i still want to load latest 02 rom but even after entering correct device data into nbfs using batch file method the device crashes saying incorrect counry id. - i accidently created my problems by accidently running the wrong upgrade rom and i guess it changed somthing on my device " country code" however when i use method above to get original rom inplace and working when i extract device data into windows folder on device i still see the wwe ( world wide english) so i am still in a pickle - can anyone help me .
hello
i'm working on the project of flashing the bootloader into a totally erased and dead phone. can you send us the test points from the prophet please? and if you know their location on a WIZARD. thank you..
Somebody here Please tell what soft to use with JTAG to recover da bootloader!!!!!!!!!!!!!
get the JTAG pins for me, I will send you soft.
Wizard and Charmer pins are both needed.
hi, i've succesfully wrecked my Blueangel PH20B by flashing a modded wm6-universal-rom... i've got all the hw & sw to resurrect the phone but the jtag pins on the BA-PCB...
can someone give me a hint where i may find them? (i'm not wanting to bake the pcb as i know i'll wreck it comletley)
thanks in advance,
mario
Same problem here
Hi,
I believe I'm having the same problem
Please help me
Thax a million
so can you help me i need to write the wizard(g4) bootloader or thell me how can i do this
T-Mobile USA SDA II
Me also, i'm i need of re-writing boot-loader of T-Mobile USA SDA II
well, ok I understand that you can get the Jflash_mm working with PXA systems, you can write the definition for yourself, as for the CPU.
but I have serious doubts that inspire me to suggest you will have tiny chance to actually program a DiskOnChip Millennium series (or familiar) chip used in many platforms (actually I believe most HTC devices).
after all this means that if you are not working for (or in affiliation or partnership with) SanDisk, you are not in position to program bootloader to (not limited to) UNIVERSAL, WIZARD, PROPHET, and CHARMER (and if I remember well, BLUEANGEL and HIMALAYA) devices over JTAG.
any news............

MP MAN MP 720 original firmware found

hey guys, new to this, just got a MP720, not much firmware about for this one, not must of anything really,
I did however find this site with links to the to original firmware from MPMAN,
using google translate haha, it seems the two flavours of chipset for this taplet,
Hynix NAND firmware:
https://dl.dropbox.com/u/29403117/MP720 An 2.3_Hynix.rar
Micron NAND firmware:
https://dl.dropbox.com/u/29403117/MP720 An 2.3_Micron.rar
Flash Tool:
https://dl.dropbox.com/u/29403117/upgrade tool and Introduction.rar
that said i have not tested these FW's and cant vouch for the safety of using them,
I'm not a developer but hopefully they could be usefull for making a cyanogenmod for it (fingers crossed haha) or some one who has bricked there tap,
source:
https://slo-tech.com/forum/t528078
I have downloaded these files so if the link becomes dead please let me know and i will send them
Firmware Testers Needed
Is theres anyone with a bricked MP720 to test these FW's? id like to upgrade my 2.2 tablet, but only if these FW's are known to work.
TESTERS NEEDED
thanks in advance
Tested firmware, working fine, so it is all good for anyone with a bricked mp720/MID7020
would this be usefull for making a custom rom?
Since last december, my tablet was bricked!!!
Wordked for me !!!
Thanks !!!!
Since no question has been asked here, moved to General section.
hail to the king baby!
works well! thank you!
when i tri to instal the firmware i have this errors
ERR_FWDN_DRV_IOCTRL_DEV_INITIALIZE
CFwdnPORT:evice_Init:FWDN RESPONSE PARAMETER FAILURE
Please HELP.
Hello, need help with mpman mp720, followed instsruction from "upgrade firmware introduction" but the firmware utility does not detect my tablet's nand memory even after i turn off device and start by pressing volume up and power button,when i do this the brand logo disapaear and screen is black only with lcd backlite on, the table is in the device manager recognized as Android device and android composite adb interface.
The tablet don't start and remains blocked at word "android".
Any suggestion is welcome.
ancient998844 said:
Hello, need help with mpman mp720, followed instsruction from "upgrade firmware introduction" but the firmware utility does not detect my tablet's nand memory even after i turn off device and start by pressing volume up and power button,when i do this the brand logo disapaear and screen is black only with lcd backlite on, the table is in the device manager recognized as Android device and android composite adb interface.
The tablet don't start and remains blocked at word "android".
Any suggestion is welcome.
Click to expand...
Click to collapse
Try whit this FWDN v7_2.09 if not work try another version of FWDN ,you must see this in FWDN Low format whole memory before download
I have manage with volume "-" and power
mine was hynix and has been flashed succesfuly
thanks

[Q] i747m (Bell) - Requesting Assistance

Alright, Apologies if this thread has been started in the wrong area - Just to get that off my chest lol.
I've recently made a serious mistake - noob mistake -
I had flashed the (DMG2) (I747 (AT&T)) from http://forum.xda-developers.com/showthread.php?t=2321310
Now, my phone is dead as a doorknob - Almost.
I thank you in advance for reading through this and ANY help is greatly appreciated
I've recently discovered that the device is recognized as:
Qualcomm HS-USB QDLoader 9008 (COM2;Can be changed)
Model: QHSUSB_DLOAD
I've been lurking the threads and found a very promising lead into wat may be a solution to my issue without JTAG'ing the device - Since the JTAG RIFF box, after research, my not support my model, the only option would be to replace the Mobo, though I coul be wrong on that.
I'm opt'ing to not send the device off to get JTAG'ed since I'm determined to find a solution...for now
OS - Windows 8
Firmware (Prior to Brick) - I747MVLDMF1
ROM: SlimRom - build.1.8-WEEKLY-1260 (Ver. 4.3)
My work so far:
- Phone will not boot into DL Mode/Recovery mode, red light (consistant) when plugged in without the battery; drops connection (w/out battery) after minute or so - with battery, the device stays connected through COM2
- USB Jig found not to work with this particular brick
- Odin does not detect (though it's using COM2) the device - I suspect this to be something to do with the DLOAD device recognition.
- Heimdall does not detect the device
- EFS: Recognizes device, cannot connect to it...
- 2nas does not detect the device
- Unified Root Tools is unable to connect to the device
- ADB (SDK Manager) - Nothing found relevant, so far - ADB doesn't connect.
- Roadkil SD Image Creater (SD boot Option) - Ironically, no i747m (Bell) Dumps located in this fourm
- UART drivers installed
- USBXpress: Still searching for potential leads
- QPST: The only viable option would be "Use Emerg. Host D/L" option under Multi-Image section in the Software Download Client - And after reading this http://www.anyclub.org/2012/05/qpst-emergency-download-support.html it burst that little bubble of mine.
I'm still searching http://www.anyclub.org/ but I wanted to see if anyone else might have located a ix for the issue - I was thingink on doing the Unbrickable mod from http://forum.xda-developers.com/showthread.php?t=1206216 but I'm kinda leary as to if that's such a good idea with my phone being in the state it's in - My question is whether or not the mod will create the opposite effect, the "non-unbrickable device"
The other idea, which I'm not to keen on either, is the possibility of forcing the phone to boot by soldering the boot leads on the Mobo -Using the MSM8960 BGA pin map showing the BOOT_CONFIG_x pads.- Source: http://forum.xda-developers.com/showthread.php?p=30781353
Again, Thank you for reading through this - Any help is GREATLY appreciated I've been up all night the past few nights trying to implement a fix for it - at this point I'm game for any testing software that may be out there to resurrect this dead body.

Hard bricked Xperia M - Help!

Hello all, I have been a lurker for quite a while here. I own an Xperia M (Rooted, Unlocked BL running CM11). I was feeling adventurous and started messing with the partition table hoping to resize the system and data partitions using parted. I was unaware that the bootloader detects such modifications and ended up with a brick.
Just to clarify, this is a hard brick, since the Flashtool and fastboot modes do not work. I do not see the blue LED while trying to start the device in the fastboot mode using the volume rockers. My PC only detects a "QHSUSB_DLOAD" device for which I've installed the drivers and it is now "Qualcomm HS-UDB QDLoader 9008".
However, before I started to work with the partition table, I took a raw backup of the emmc i.e. mmcblk0. This should include the correct partition table and all the partitions (TA, userdata, system etc.). Theoretically (I believe so), if this is reflashed onto the device, an unbrick could be possible. However, so far, I haven't been able to figure out a way to push this image back to the device. I came across QPST and some linux bash scripts but haven't been able to use them successfully.
Has anyone come across such a scenario before? I looked for solutions in other threads but didn't find anything conclusive for Xperia devices. Can someone help me with this? thanks.
randallstevens said:
I was feeling adventurous and started messing with the partition table
Click to expand...
Click to collapse
Hi,
On other forum one user followed suggested by me same theory of remapping paritions as described here to shrink so large /system and increase /userdata
He gotta same brick because deleted 3 partitions and then they was cannot created by any commands, so seems this method not applicable to our phone.
Next he very early quited from recovery without restoring partition table from backup.
Surprisingly, in un-offical service center phone was quickly fixed, seems with JTAG-device.
QHSUSB_DLOAD – this is fall-back low-level mode of CPU that allow access to all partitions just like fastboot
Needed to repair / writing stock ROM at factory.
Can be enabled manually by connecting to PC with holding both volume buttons. How to exit – don't know.
QPST utility not useful because we not have dump in it's proper format. So only Linux our hope.
That user tried to manage with Ubuntu but phone was not recognized. Very likely he went into something wrong.
That's very great that you created backup of whole NAND.
Maybe will be enough restore GPT (partition table), I have one and own per-partitions dump too.
So plan very easy: connecting phone to PC with Ubuntu and restore dump via dd utility.
Partially follow this instruction with modifications because you have full dump.
Connect phone, find where it "attached" (whole nand, not partitions), restore file there.
Be careful with disk naming, you can damage data on HDD.
Bonoboo said:
So plan very easy: connecting phone to PC with Ubuntu and restore dump via dd utility.
Partially follow this instruction with modifications because you have full dump.
Connect phone, find where it "attached" (whole nand, not partitions), restore file there.
Be careful with disk naming, you can damage data on HDD.
Click to expand...
Click to collapse
Hi Bonoboo, thank you for replying.
Unfortunately, Ubuntu isn't able to detect the emmc and therefore, I'm unable to find the "/dev/sdX" node for the device. The phone is being detected only as "Qualcomm, Inc. Gobi Wireless Modem (QDL mode)".
I've seen some threads wherein QPST is first used to enable the partitions detection of emmc. However, as you mentioned, we do not have the necessary MSM8227 HEX file for this.
A windows app called "s1tool.exe" can be used to flash the bootloader files from the FTF, Link to thread. However, a testpoint combination is needed to access the emergency mode. I was unable to find a testpoint for Xperia M.
Is JTAG the only way forward here? Thanks again for the help.
EDIT: Looks like the s1tool I mentioned is device specific, may not work with XM.
randallstevens said:
I'm unable to find the "/dev/sdX" node for the device.
The phone is being detected only as "Qualcomm, Inc. Gobi Wireless Modem (QDL mode)".
Click to expand...
Click to collapse
Yeah, this is not good, same as was with that guy. 1, 2
But here under spoiler I found Perl-script that may open access to eMMC.
Here more info.
Maybe it device-specific too, but anyway try.
UPD: post
just connect your phone to PC (at this time your /var/log/kern.log should update and ttyUSB0 should be added), in terminal, cd to your download folder and run './qd.pl --check', or run 'perl ./qd.pl --check'.
Click to expand...
Click to collapse
Bonoboo said:
Yeah, this is not good, same as was with that guy. 1, 2
But here under spoiler I found Perl-script that may open access to eMMC.
Here more info.
Maybe it device-specific too, but anyway try.
UPD: post
Click to expand...
Click to collapse
Hello Bonoboo,
I've tried using the qd.pl script but I'm not sure which file needs to be sent to the device when using the "qd.pl --pfile X" and the other parameters. The script detects the Qualcomm modem. I've tried uploading the first 256 kilobytes of the dump which should include the partition table but this results in an "Invalid Response" error from the script. Tried uploading the TA and some other partitions, but received the same error. No eMMC access yet. What file do you think the script requires?
randallstevens said:
What file do you think the script requires?
Click to expand...
Click to collapse
Was mentioned some *.hex, that maybe relates with same from QPST.
In threads more info.
Very likely script just not compatible with M.
UPD: it's sounds weird, but try to connect phone in fastboot / flashmode with long holding volume key.
In some cases this really helpful due second "bootloader" (alt_s1sbl2 partition and other).
Bonoboo said:
UPD: it's sounds weird, but try to connect phone in fastboot / flashmode with long holding volume key.
In some cases this really helpful due second "bootloader" (alt_s1sbl2 partition and other).
Click to expand...
Click to collapse
Hi, I tried long-pressing the volume key, it does not seem to work. Thanks for the confirmation about the hex file. It looks like I'll need the right files for the handset, as using hex files of similar chipsets did not help. I'll keep working on it and write back with an update if I'm able to fix it.
I've got the same problem., but unfortunately I didn't make a dump of mmcblk0. There is a way I can get yours? Or a part of it with the interesting data with which I can try figuring out how the qdload.pl script works (maybe leave out userdata cause of its size and the private data).
fakier said:
I've got the same problem., but unfortunately I didn't make a dump of mmcblk0. There is a way I can get yours? Or a part of it with the interesting data with which I can try figuring out how the qdload.pl script works (maybe leave out userdata cause of its size and the private data).
Click to expand...
Click to collapse
Hi fakier, sorry to know you have the same problem. I've sent you a PM with a link to a compressed copy of the first 140 MBs of the raw eMMC dump I made earlier. This should contain all the important partitions besides system and userdata. Note that this also includes my TA partition which probably shouldn't be written to your device.
randallstevens said:
Hi fakier, sorry to know you have the same problem. I've sent you a PM with a link to a compressed copy of the first 140 MBs of the raw eMMC dump I made earlier. This should contain all the important partitions besides system and userdata. Note that this also includes my TA partition which probably shouldn't be written to your device.
Click to expand...
Click to collapse
Thanks, a backup of my TA partition I do have...
Update
Hello folks, after spending a lot of time trying to fix my device with qdloader and QPST, I gave up. Before getting it JTAGed, I wanted to try my luck (again) and approached Sony to claim warranty, since there was a month remaining before its expiry.
My warranty claim was accepted and they replaced the mainboard, though the bootloader was unlocked!! My Xperia is alive and kicking again! Will unlock it soon.
Trying to fix the phone was not a pleasant experience, but I think I learned much along the way. Hope nobody else screws-up the way I did.
Thanks XDA, see ya around! :good:
randallstevens said:
Hello folks, after spending a lot of time trying to fix my device with qdloader and QPST, I gave up. Before getting it JTAGed, I wanted to try my luck (again) and approached Sony to claim warranty, since there was a month remaining before its expiry.
My warranty claim was accepted and they replaced the mainboard, though the bootloader was unlocked!! My Xperia is alive and kicking again! Will unlock it soon.
Trying to fix the phone was not a pleasant experience, but I think I learned much along the way. Hope nobody else screws-up the way I did.
Thanks XDA, see ya around! :good:
Click to expand...
Click to collapse
Dude what was the point of this thread and when you tried to fix your phone did you re flash stock ROM?
Reply to Piravinthb's comment
Piravinthb said:
Dude what was the point of this thread..
Click to expand...
Click to collapse
The point of this thread, dude, was to see if the device could somehow be taken out of the "Qualcomm HS-USB QDLoader 9008" mode, a (very) low-level interface meant for vendors to flash bootloaders and system images on their devices.
..and when you tried to fix your phone did you re flash stock ROM?
Click to expand...
Click to collapse
Had you googled this, you'd know that this mode isn't the same as the Flashtool flash mode or fastboot. No rom, stock or CM, can be flashed before fixing the bootloader itself, which is needed to start the device.
Not much progress could be made here since the bootloader hex files for Qualcomm's OEM tools (QPST) would be needed to fix such a hard brick. Also, the QDloader scripts mentioned earlier were written for a different chipset from the one used in Xperia M.
Cheers, RS.
randallstevens said:
Hello all, I have been a lurker for quite a while here. I own an Xperia M (Rooted, Unlocked BL running CM11). I was feeling adventurous and started messing with the partition table hoping to resize the system and data partitions using parted. I was unaware that the bootloader detects such modifications and ended up with a brick.
Just to clarify, this is a hard brick, since the Flashtool and fastboot modes do not work. I do not see the blue LED while trying to start the device in the fastboot mode using the volume rockers. My PC only detects a "QHSUSB_DLOAD" device for which I've installed the drivers and it is now "Qualcomm HS-UDB QDLoader 9008".
However, before I started to work with the partition table, I took a raw backup of the emmc i.e. mmcblk0. This should include the correct partition table and all the partitions (TA, userdata, system etc.). Theoretically (I believe so), if this is reflashed onto the device, an unbrick could be possible. However, so far, I haven't been able to figure out a way to push this image back to the device. I came across QPST and some linux bash scripts but haven't been able to use them successfully.
Has anyone come across such a scenario before? I looked for solutions in other threads but didn't find anything conclusive for Xperia devices. Can someone help me with this? thanks.
Click to expand...
Click to collapse
hi i have same problem with same adventure , but i was using stock rom with customized kernel with cwm.
i think the solutions are 2
repair hard brick with JTAG or test point and s1tool what is not implemented for xperia m
see http://forum.xda-developers.com/showthread.php?t=2646405 for Z1
my handset will be in trash no free or paid solution or sony service . i'll buy another one
thx
rafik23 said:
my handset will be in trash no free or paid solution or sony service . i'll buy another one
thx
Click to expand...
Click to collapse
Buy a nexus 4 off amazon for 140€
It only takes 2 taps to thank somebody here.

[SOLVED] Soft brick (?) on Z1C-based ZPG handheld

SOLVED: I figured out the issue. As mentioned in this thread, downgrading to an older version of flashtool successfully got me past the bundle mismatch error, allowing me to flash stock US firmware onto the device. Still not exactly sure why that's the case, but it worked for me.
Hey folks,
Hope you're all doing well! I have a bit of an odd situation. I recently picked up a Z-Pocket Game, a handheld built using the internals from a torn down Z1 Compact.
A few days ago, I decided to see if I could poke around and install a custom ROM onto the device, given how many are available for the source hardware (Z1C). The device already came pre-installed with XZDualRecovery and was running a custom ROM in Chinese built off Lollipop.
I'm a novice when it comes to flashing and custom ROMs, so I tried to learn more about the process before getting started. Evidently, however, I'm in over my head - fully my responsibility, of course, but over my head nonetheless.
Long story short, I tried to install Lineage OS 17.1 onto the device via the version of TWRP already installed on the device. As per the installation instructions detailed here, I did an advanced wipe before attempting the install, selecting "Dalvik," "System," "Cache," and "Data." When I actually attempted the process, however, it errored out almost immediately, leaving me with a wiped system and no ROM (TWRP warned me about this prior to rebooting).
When I now power on the device, it's stuck on the "Sony - XPERIA" screen, and the LEDs don't light up at all. I can't seem to access TWRP or Philz on the device with the normal key presses. I can force the device off by holding Power and Volume Up, and it also seems able to enter fastboot mode (with a solid blue LED) and flash mode (the LED flashes green, then turns off). I've tried a number of different things to try and fix it, but all of them haven't worked in one way or another. Providing a brief overview to the best of my recollection here, but happy to try again and give more detail if needed:
Using fastboot via the command line to flash a new recovery onto the device gives me an error indicating I can't write the file to the device, and things just end there.
Trying to flash a stock US ROM to the device via flashtool gives me an error indicating the device does not match the bundle, and things just end there.
Trying to restore the device using Xperia Companion first gives an error requesting permission to access the device, then when I select "My Device Cannot Be Detected or Started" and follow the instructions, it tells me that "an error occurred while repairing this device," and provides this small blurb of device info:
UEGetPhoneInfoMissingInfo
Z-POCKET GAME 3579 1279-6978 R2D 14.6.A.1.236
2.11.6.0 / Windows 10 64 bit / Win32 / US / /
So I'm a bit stumped. It seems as though enough of the device is working to get everything back into a workable state, but I'm not sure of how to go about that. Any thoughts or leads would be greatly appreciated!
edit_duplicate said:
SOLVED: I figured out the issue. As mentioned in this thread, downgrading to an older version of flashtool successfully got me past the bundle mismatch error, allowing me to flash stock US firmware onto the device. Still not exactly sure why that's the case, but it worked for me.
Hey folks,
Hope you're all doing well! I have a bit of an odd situation. I recently picked up a Z-Pocket Game, a handheld built using the internals from a torn down Z1 Compact.
A few days ago, I decided to see if I could poke around and install a custom ROM onto the device, given how many are available for the source hardware (Z1C). The device already came pre-installed with XZDualRecovery and was running a custom ROM in Chinese built off Lollipop.
I'm a novice when it comes to flashing and custom ROMs, so I tried to learn more about the process before getting started. Evidently, however, I'm in over my head - fully my responsibility, of course, but over my head nonetheless.
Long story short, I tried to install Lineage OS 17.1 onto the device via the version of TWRP already installed on the device. As per the installation instructions detailed here, I did an advanced wipe before attempting the install, selecting "Dalvik," "System," "Cache," and "Data." When I actually attempted the process, however, it errored out almost immediately, leaving me with a wiped system and no ROM (TWRP warned me about this prior to rebooting).
When I now power on the device, it's stuck on the "Sony - XPERIA" screen, and the LEDs don't light up at all. I can't seem to access TWRP or Philz on the device with the normal key presses. I can force the device off by holding Power and Volume Up, and it also seems able to enter fastboot mode (with a solid blue LED) and flash mode (the LED flashes green, then turns off). I've tried a number of different things to try and fix it, but all of them haven't worked in one way or another. Providing a brief overview to the best of my recollection here, but happy to try again and give more detail if needed:
Using fastboot via the command line to flash a new recovery onto the device gives me an error indicating I can't write the file to the device, and things just end there.
Trying to flash a stock US ROM to the device via flashtool gives me an error indicating the device does not match the bundle, and things just end there.
Trying to restore the device using Xperia Companion first gives an error requesting permission to access the device, then when I select "My Device Cannot Be Detected or Started" and follow the instructions, it tells me that "an error occurred while repairing this device," and provides this small blurb of device info:
UEGetPhoneInfoMissingInfo
Z-POCKET GAME 3579 1279-6978 R2D 14.6.A.1.236
2.11.6.0 / Windows 10 64 bit / Win32 / US / /
So I'm a bit stumped. It seems as though enough of the device is working to get everything back into a workable state, but I'm not sure of how to go about that. Any thoughts or leads would be greatly appreciated!
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Glad that you find out yourself.
And thanks for sharing!

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