[Lenovo P2 Questions & Answers] joemar53:
I have bought a Lenovo P2C72 4GB/64GB..

Opened it then it prompted for an update (no sim yet).

Build Number: V3.5_1652_5.1342.1_ST_P2c72

After update I plugged in Sim card..

Some say If I plugged in Sim card it will auto configure to P2a42. It didnt for me.

I found out that there is no google play.

There were numerouse Chinese Play stores and bloatwares. I want to get rid of it.

How can I transfer to P2A42? I cant unlock bootloader.. I think it needs Chinese number.

-What are my options to get to a Global Rom?

I have downloaded a ZIP file for P2a42 Nougat Update (1.9GB). Can I just use this for update?

[Update]

Please correct me if what I'm planning to do wrong and I'll raise some questions about my plans aswell.

1. I downloading the fastboot files for P2a42. Q> Can I fastboot even if my bootloader is locked?

2. I'll flash all execpt the bootloader.img (because of modem issues). Q> Is bootloader.img different from boot.img?

3. After flashing via fastboot (if I get to this part without issues) Can I go to Nougat Update through OTA zip file?

3.1 If not How can I update to Nougat?

[Update2]

1. Flashed via Fastboot (https://www.getdroidtips.com/install-official-stock-rom-for-lenovo-p2-p2a42/) Skipped bootloader.img

Problem.. Im stuck at Lenovo Opening White Screen already performed fastboot erase userdata

Process Log

C:\Program Files (x86)\Minimal ADB and Fastboot>TTT

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash partition gpt_both0.bin

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:partition: not found

target reported max download size of 536870912 bytes

sending 'partition' (33 KB)...

OKAY [ 0.031s]

writing 'partition'...

OKAY [ 0.031s]

finished. total time: 0.063s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash logo logo.bin

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:logo: not found

target reported max download size of 536870912 bytes

sending 'logo' (1907 KB)...

OKAY [ 0.078s]

writing 'logo'...

OKAY [ 0.078s]

finished. total time: 0.156s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash boot boot.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:boot: not found

target reported max download size of 536870912 bytes

sending 'boot' (21677 KB)...

OKAY [ 0.485s]

writing 'boot'...

OKAY [ 0.358s]

finished. total time: 0.858s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash recovery recovery.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:recovery: not found

target reported max download size of 536870912 bytes

sending 'recovery' (25265 KB)...

OKAY [ 0.546s]

writing 'recovery'...

OKAY [ 0.409s]

finished. total time: 0.971s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash dsp adspso.bin

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:dsp: not found

target reported max download size of 536870912 bytes

sending 'dsp' (16384 KB)...

OKAY [ 0.375s]

writing 'dsp'...

OKAY [ 0.175s]

finished. total time: 0.552s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk0.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (260121 KB)...

OKAY [ 5.648s]

writing 'system'...

OKAY [ 4.499s]

finished. total time: 10.147s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk1.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (258079 KB)...

OKAY [ 5.612s]

writing 'system'...

OKAY [ 4.081s]

finished. total time: 9.693s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk2.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (258077 KB)...

OKAY [ 5.599s]

writing 'system'...

OKAY [ 3.854s]

finished. total time: 9.453s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk3.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (261716 KB)...

OKAY [ 5.704s]

writing 'system'...

OKAY [ 4.251s]

finished. total time: 9.970s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk4.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (262033 KB)...

OKAY [ 5.736s]

writing 'system'...

OKAY [ 4.434s]

finished. total time: 10.171s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk5.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (251510 KB)...

OKAY [ 5.471s]

writing 'system'...

OKAY [ 3.897s]

finished. total time: 9.369s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk6.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (259097 KB)...

OKAY [ 5.617s]

writing 'system'...

OKAY [ 3.835s]

finished. total time: 9.467s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk7.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (259098 KB)...

OKAY [ 5.626s]

writing 'system'...

OKAY [ 3.946s]

finished. total time: 9.571s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk8.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (259098 KB)...

OKAY [ 5.645s]

writing 'system'...

OKAY [ 3.984s]

finished. total time: 9.642s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk9.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (259100 KB)...

OKAY [ 5.622s]

writing 'system'...

OKAY [ 4.191s]

finished. total time: 9.813s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk10.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (250251 KB)...

OKAY [ 5.469s]

writing 'system'...

OKAY [ 4.381s]

finished. total time: 9.850s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk11.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (261655 KB)...

OKAY [ 5.681s]

writing 'system'...

OKAY [ 4.668s]

finished. total time: 10.349s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash system systemchunk12.img

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:system: not found

target reported max download size of 536870912 bytes

sending 'system' (64584 KB)...

OKAY [ 1.422s]

writing 'system'...

OKAY [ 0.994s]

finished. total time: 2.416s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash modem NON-HLOS.bin

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:modem: not found

target reported max download size of 536870912 bytes

sending 'modem' (131072 KB)...

OKAY [ 2.871s]

writing 'modem'...

OKAY [ 1.941s]

finished. total time: 4.812s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase modemst1

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:modemst1: not found

erasing 'modemst1'...

OKAY [ 0.031s]

finished. total time: 0.031s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase modemst2

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:modemst2: not found

erasing 'modemst2'...

OKAY [ 0.031s]

finished. total time: 0.031s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash fsg fsg.mbn

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:fsg: not found

target reported max download size of 536870912 bytes

sending 'fsg' (300 KB)...

OKAY [ 0.031s]

writing 'fsg'...

OKAY [ 0.031s]

finished. total time: 0.063s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase cache

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:cache: not found

erasing 'cache'...

OKAY [ 0.031s]

finished. total time: 0.047s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase userdata

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:userdata: not found

erasing 'userdata'...

OKAY [ 0.891s]

finished. total time: 0.891s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase customize

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:customize: not found

erasing 'customize'...

FAILED (remote: device is locked. Cannot erase)

finished. total time: 0.031s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase clogo

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:clogo: not found

erasing 'clogo'...

FAILED (remote: device is locked. Cannot erase)

finished. total time: 0.031s

C:\Program Files (x86)\Minimal ADB and Fastboot>pause

Press any key to continue . . .

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot devices

ZY223MSGQC fastboot

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot erase userdata

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

(bootloader) has-slot:userdata: not found

erasing 'userdata'...

OKAY [ 0.196s]

finished. total time: 0.198s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot reboot

(bootloader) slot-count: not found

(bootloader) slot-suffixes: not found

(bootloader) slot-suffixes: not found

rebooting...

finished. total time: 0.033s

C:\Program Files (x86)\Minimal ADB and Fastboot>

[Update3]

Nothing seems to work. Stuck in White screen booting. PLEASE HELP!

[UPDATE 4: Its Working Now with P2a42]

Using this guide. (https://www.getdroidtips.com/install-official-stock-rom-for-lenovo-p2-p2a42/)

Flashed this via Fastboot (https://mega.nz/#!3hhhhRYC!bDbs1VGHA7s0n-uH-B30fVDsulFRVw-ZbYTvheS9m8I/)

Note:

I excluded/removed (bootloader.img) from fastboot folder

then used the existing flashall.bat file included in the zip file

C:\Program Files (x86)\Minimal ADB Tool>flashall

I got bootlooped probably because I used the answer by Undesirable. Made my own bat file.

(Dont get me wrong though, its good answer just not for me atm)

https://xdaforums.com/lenovo-p2/how-to/stock-rom-t3552973/page2