Urgent Help needed Zenfone Laser 2 ZE550KL

[arreddy91]

My phone software version is WW_1.17.40.1234_20160304 and i found latest firmware from asus official site that is WW_21.40.1220.2179 (https://www.asus.com/in/Phone/ZenFone-2-Laser-ZE550KL/HelpDesk_BIOS/) but i don't know how to upgrade that zip file
after upgrading i want to install custom roms i am asking here because previously i tried installing custom rom but it's stuck in bootloop or fastboot mode i thought may be this is a baseband version or something so i will update to this one first then i go for custom rom
please tell me how to update or flash firmware

 

[areeb1296]

I don't quite understand what you are asking.
You have twrp right?

 

[arreddy91]

I don't quite understand what you are asking.
You have twrp right?

How to flash official firmware which is downloaded from Asus website. I am running Android 5.o

 

[areeb1296]

How to flash official firmware which is downloaded from Asus website. I am running Android 5.o

I don't think you can flash latest firmware directly if you're still running lolipop.

But if you want custom roms, then just get twrp recovery and flash a rom.
There's no need to upgrade stock firmware to do that.

 

[arreddy91]

I don't think you can flash latest firmware directly if you're still running lolipop.

But if you want custom roms, then just get twrp recovery and flash a rom.
There's no need to upgrade stock firmware to do that.

I tried but it was stuck at bootloop or flashboot mode

 

[areeb1296]

I tried but it was stuck at bootloop or flashboot mode

What exactly did you do?
Also which rom was it? LInk it.

 

[arreddy91]

What exactly did you do?
Also which rom was it? LInk it.

Lineageos latest

 

[arreddy91]

What exactly did you do?
Also which rom was it? LInk it.

Maybe it is a baseband or boot image problem

 

[arreddy91]

What exactly did you do?
Also which rom was it? LInk it.

How to update latest firmware from this version

 

[areeb1296]

How to update latest firmware from this version

Does adb update or update via sd card not work in stock recovery?

 

[dnchandana]

u have to update firmware with one by one zip files

My phone software version is WW_1.17.40.1234_20160304 and i found latest firmware from asus official site that is WW_21.40.1220.2179 (https://www.asus.com/in/Phone/ZenFone-2-Laser-ZE550KL/HelpDesk_BIOS/) but i don't know how to upgrade that zip file
after upgrading i want to install custom roms i am asking here because previously i tried installing custom rom but it's stuck in bootloop or fastboot mode i thought may be this is a baseband version or something so i will update to this one first then i go for custom rom
please tell me how to update or flash firmware

your phone in 5.0 partion layout so,6.0 customes roms does not support,

so u do one thing

first u must download all files
from WW_1.17.40.1234_20160304
this version to latest version from asus site ,
place one by one files in phone sd card folowed by series and install them manually,to latest firmware 09/11/2017.
if your phone got ota updates ,install all updates one by one,
or whatsapp me 7013_4455,95,,,,,,