First of all, thanks for all the people here provide very useful message.
Acutally I encouter a lot of similar issues across the posts.
Please refer to the posts here:
Unbrick guide Z00l Ze550kl
Need QCN file for ZE550KL/Z00L (2GB Ram) Please.
[Solved]Stuck on logo when booting into custom ROM( Zenfone 2 laser ZE550KL Z00LD)
My model is ZE550KL 2GB/16GB version.
What need to be prepared (please look around from google)
1. CSCImage for recovery
2. QPST 2.7
3. Workable QCN, if you have no backup please make one from the other post. (you will need imei coverter and HxD)
4. Retail image WW_ZE550KL_1.17.40.1234-rel-user-20160304185904-secured-releaseAFT_QC
5. Offical latest image
6. TWRP
7. Minitool Partition Manager (I tried diskpart but not working, so please use this one)
8. Qualcomm Driver
Here are the procedures for reference (I do this for over 10 times and 3 nights)
Please make sure you have working QCN...otherwise you cannot recover the calling feature.
1. Erase aboot
fastboot_8916 erase aboot
use above command to erase the partition
you can unplug the battery and cable and replug them.
or simply use fastboot reboot command.
Result: Device enter into 9006 mode
2. Open Minitool Partition manager
Right click and Delete all partition.
Create one single partition using ext4 format
Once done, remove the battery and cable, replug them.
Result: Device enter into 9008 mode
3. If you installed QPST, you should have a program called QFIL
Please use it and extract the firmware from CSCImage, it should have all the items except emmc MBN, just copy it from the root folder.
If you do this correct (follow other post for more detail)
Replug the device will give you a fastboot screen
Result: Device with workable fastboot
4. Now you have a clean bootloader, but no other thing
Go to CSCImage and click flashall
Once it is done, all the partitions will be ok (sometimes I got /factory not mount, let's fix this later)
Result: you will have a engineering OS and bootloader unlocked, diag mode natively enabled.
5. Open Software Downloader from QPST, and recover the QCN, it will reboot the phone.
If you are not doing this correctly (and many issues here), you will get bootloop.
And you have to start over again.
My suggestion is do not touch any of the bootloader setting. (so do not try to use unofficial bootloader unlock guide)
Even you give a command like "fastboot oem adb_enable" it will cause a bootloop and have to start over.
So my suggestion is not touch any bootloader setting
Result: The phone calling and data should be recovered. You can test by making some call.
6. If you want to keep your bootloader unlocked, the retail image flashall you can search there is a "oem lock"
change to unlock and run it in fastboot mode.
Result: You will have a bootloader unlocked phone, with WW firmware.
You can start from here to do TWRP.
to fix /factory partition. you can install busybox and in adb shell, use mkfs.vfat for the partition.
Acutally I encouter a lot of similar issues across the posts.
Please refer to the posts here:
Unbrick guide Z00l Ze550kl
Need QCN file for ZE550KL/Z00L (2GB Ram) Please.
[Solved]Stuck on logo when booting into custom ROM( Zenfone 2 laser ZE550KL Z00LD)
My model is ZE550KL 2GB/16GB version.
What need to be prepared (please look around from google)
1. CSCImage for recovery
2. QPST 2.7
3. Workable QCN, if you have no backup please make one from the other post. (you will need imei coverter and HxD)
4. Retail image WW_ZE550KL_1.17.40.1234-rel-user-20160304185904-secured-releaseAFT_QC
5. Offical latest image
6. TWRP
7. Minitool Partition Manager (I tried diskpart but not working, so please use this one)
8. Qualcomm Driver
Here are the procedures for reference (I do this for over 10 times and 3 nights)
Please make sure you have working QCN...otherwise you cannot recover the calling feature.
1. Erase aboot
fastboot_8916 erase aboot
use above command to erase the partition
you can unplug the battery and cable and replug them.
or simply use fastboot reboot command.
Result: Device enter into 9006 mode
2. Open Minitool Partition manager
Right click and Delete all partition.
Create one single partition using ext4 format
Once done, remove the battery and cable, replug them.
Result: Device enter into 9008 mode
3. If you installed QPST, you should have a program called QFIL
Please use it and extract the firmware from CSCImage, it should have all the items except emmc MBN, just copy it from the root folder.
If you do this correct (follow other post for more detail)
Replug the device will give you a fastboot screen
Result: Device with workable fastboot
4. Now you have a clean bootloader, but no other thing
Go to CSCImage and click flashall
Once it is done, all the partitions will be ok (sometimes I got /factory not mount, let's fix this later)
Result: you will have a engineering OS and bootloader unlocked, diag mode natively enabled.
5. Open Software Downloader from QPST, and recover the QCN, it will reboot the phone.
If you are not doing this correctly (and many issues here), you will get bootloop.
And you have to start over again.
My suggestion is do not touch any of the bootloader setting. (so do not try to use unofficial bootloader unlock guide)
Even you give a command like "fastboot oem adb_enable" it will cause a bootloop and have to start over.
So my suggestion is not touch any bootloader setting
Result: The phone calling and data should be recovered. You can test by making some call.
6. If you want to keep your bootloader unlocked, the retail image flashall you can search there is a "oem lock"
change to unlock and run it in fastboot mode.
Result: You will have a bootloader unlocked phone, with WW firmware.
You can start from here to do TWRP.
to fix /factory partition. you can install busybox and in adb shell, use mkfs.vfat for the partition.
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