Black screen after bootloader via HCU in TP mode unlock and flash. FASTBOOT only now. Noodle scratching. Ideas?

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shortyzsly

Member
Oct 24, 2012
15
4
23
Hi guys, so I recently discovered you can use test point mode on my phone through DC Phoenix to then use HCU to unlock your bootloader and root and flash custom roms etc.

So after unlocking the bootloader which gave a success message. My phone proceeded to reboot into erecovery as there was some red text etc warning me about the system not being verified or trusted or something.

Now i started to download latest software to install through recovery but decided to stop it as i had already downloaded a firmware file 8.1 in full to flash. So i started that. And after flashing the erecovery files it rebooted me into upgrade mode (as it should) but it failed then after a few seconds and then the phone went black screen. I've now only got access to fastboot mode and nothing else. PC picks up the device in FB mode but cant issue any commands. They fail saying remote: failed. So I cannot flash any more files albeit system.img etc.

I have heard of the dload method but i cant seem to get it to work phone just doesnt boot up and start installing or anything.

Worth mentioning I have logs of everything i can post here.

The log from the "Successful" bootloader unlock via HCU: (it relocked after reboot) FRP too I think.

I have also replaced the endings of the imei listings etc with XXXX just as habit. I dont wanan post my IMEI etc online. Call it paranoia lol

25/01/2021 22:49:23
HCU Client v1.0.0.0372
Account: shortyzsly

Before operation turn phone to TestPoint mode:
Turn off phone, then short TestPoint on phone pcb
and plug USB cable
Wait for device "HUAWEI USB COM 1.0" in Ports


Read phone info
2021-01-25 22:49:23.140 Selected Cpu/Bootloader - Kirin970_T1_A8.1_V6
2021-01-25 22:49:23.142 Connecting to server...
2021-01-25 22:49:23.358 Connected!
2021-01-25 22:49:23.939 Find device COM3, handle 9956
BOOTLOADER selected to update:Kirin970_T1_A8.1_V6
2021-01-25 22:49:24.247 Downloading bootloader...
FILE TO download: Kirin970_T1_A8.1_V6_3.dtwork
downloading file Kirin970_T1_A8.1_V6_3.dtwork...
2021-01-25 22:49:26.501 Success
FILE TO download: Kirin970_T1_A8.1_V6_4.dtwork
downloading file Kirin970_T1_A8.1_V6_4.dtwork...
2021-01-25 22:49:27.671 Success
FILE TO download: Kirin970_T1_A8.1_V6_5.dtwork
downloading file Kirin970_T1_A8.1_V6_5.dtwork...
2021-01-25 22:50:22.279 Success
2021-01-25 22:50:22.286 Bootloader write success!
2021-01-25 22:50:22.288 Waiting for device REMOVAL/INSERTION...
2021-01-25 22:50:28.903 Device ready!
2021-01-25 22:50:28.983 Found device in fastboot mode!
2021-01-25 22:50:28.987 Reading info...
2021-01-25 22:50:33.024 Done!

Fastboot provided info:
CPU: kirin970
Model: CLT-L09
Firmware: CLT-L09 9.1.0.372(C782E12R1P11)
Vendor: hw
Country: eu
SN: LCL021XXXXXXXXX
PCB SN: 025DGTXXXXXX
WIFI MAC: 8811XXXXXX
BT MAC: 8811XXXXXXX
Theme color: black
Device color: black
FBLOCK: 1
Bootloader FB lock: unlocked
Bootloader User lock: locked

Found signed IMEI:
IMEI1: 867259XXXXXXXX
IMEI2: 867259XXXXXXXX
SIM NW_LOCK status: UNLOCKED

Found NV data:
Modems: 3
IMEI1: 86725XXXXXXXXX
IMEI2: 86725XXXXXXXXX
IMEI3: 000000000000000
PESN: 8022XXXX
MEID: A0000093XXXXX

Found OEM data:
Model: CLT-L09
Firmware: CLT-L09 9.0.0.168(C782E3R1P9)
Rescue: rescue:Chipset-boston 8.1.0.001(01FL)
Vendor: hw
Country: eu
Version limitation: ON
SIMCARDMODE: single
Bootloader User lock: locked

25/01/2021 22:52:35
HCU Client v1.0.0.0372
Account: shortyzsly

Before operation turn phone to TestPoint mode:
Turn off phone, then short TestPoint on phone pcb
and plug USB cable
Wait for device "HUAWEI USB COM 1.0" in Ports


Repair
New FB User Lock : UNLOCKED
New downgrade/customization limitations : UNLOCKED
Selected Cpu/Bootloader - Kirin970_T1_A8.1_V6
2021-01-25 22:52:36.442 Connecting to server...
2021-01-25 22:52:36.708 Connected!
2021-01-25 22:52:37.330 HUAWEI device in Test Point mode Not found!
2021-01-25 22:52:37.402 Reading info...
2021-01-25 22:52:41.275 Done!

Fastboot provided info:
CPU: kirin970
Model: CLT-L09
Firmware: CLT-L09 9.1.0.372(C782E12R1P11)
Vendor: hw
Country: eu
SN: LCL0218717XXXX
PCB SN: 025DGT187D00XXX
WIFI MAC: 88119XXXX
BT MAC: 8811966XXXX
Theme color: black
Device color: black
FBLOCK: 1
Bootloader FB lock: unlocked
Bootloader User lock: locked

Found signed IMEI:
IMEI1: 8672590XXXXX
IMEI2: 8672590XXXXX
SIM NW_LOCK status: UNLOCKED

Found NV data:
Modems: 3
IMEI1: 86725903XXXXXX
IMEI2: 867259035XXXXX
IMEI3: 000000000000000
PESN: 80221B5B
MEID: A00000934BCC82

Found OEM data:
Model: CLT-L09
Firmware: CLT-L09 9.0.0.168(C782E3R1P9)
Rescue: rescue:Chipset-boston 8.1.0.001(01FL)
Vendor: hw
Country: eu
Version limitation: ON
SIMCARDMODE: single
Bootloader User lock: locked
Phone ID: 80A0E6XXXXXXXX
2021-01-25 22:52:45.590 Repairing...
2021-01-25 22:52:45.598 Write FB User lock not supported for this model, skipped!
2021-01-25 22:52:45.611 Write partition oeminfo...
2021-01-25 22:52:47.468 Write partition oeminfo success!
2021-01-25 22:52:47.494 Unlocking restrictions...
2021-01-25 22:52:47.511 Unlock restrictions success!
2021-01-25 22:52:47.514 Done!

Basically what I wanna know is, is she dead and gone or can she be saved?
 
Last edited:

shortyzsly

Member
Oct 24, 2012
15
4
23
As it turns out, I think it may be an issue with the loader I may have tried to flash 8.1 and it was on 9.1. Any help when you get a chance anyone who's has the same issue. I searched the forums can't find my exact issue.
 

gefechtseule

Member
Jun 24, 2011
9
0
21
i have rolled back to android 8,1 and used Kirin970_T2_A8.0_V3 in dc phoenix and hcu client.
first activated software tespoint and then used hcu with this ^^loader.
Screen comes back and i can see both status unlocked. Can flash TWRP with fastboot command with succes message but after reboot, trwp is erased i think through erecovery and Phone ist locked again. I am still trying to unlock it. Dont know why it shows unlocked and after reboot or deactivating Software testpoint again is locked.
Sorry for my bad english.
 

shortyzsly

Member
Oct 24, 2012
15
4
23
i have rolled back to android 8,1 and used Kirin970_T2_A8.0_V3 in dc phoenix and hcu client.
first activated software tespoint and then used hcu with this ^^loader.
Screen comes back and i can see both status unlocked. Can flash TWRP with fastboot command with succes message but after reboot, trwp is erased i think through erecovery and Phone ist locked again. I am still trying to unlock it. Dont know why it shows unlocked and after reboot or deactivating Software testpoint again is locked.
Sorry for my bad english.


So you mean to say you also had this issue?! I thought I was boned. There may be hope yet :) Thank you i will report back <3