0

I have jsnL21 C432 4/64 version

I upgraded my phone by 3 button method from 8.2 to 9.0.1.158. Using Firmware Finder, I found a newer version of my firmware in 9.0.1.162 which has a lot of improvement and battery optimization. I want to flash it on my device. I downloaded the firmware but it has 2 files:

  1. Update.zip 2.24GB
  2. Update_full_jsn_l21_hw_eu.zip 643MB

I know I should extract update.app into dload folder but the problem is I have 2 zips and inside of each files has a separated Update.app. How to upgrade with these files?

Firmware Finder

  • You you are talking about third party apps and software like "firmware finder" you should provide a link to the software. Please edit your question and update it with this information. – Robert Jun 3 at 17:11
  • yeah sure i did that – Amin Jun 3 at 18:39
  • Have you read and act on the "Important notice" in the app description?: Before do anything with your phone i request you, read XDA or 4PDA threads about your phone and how install firmwares or go to telegram chat and give your question. – Robert Jun 4 at 7:32
  • yeah i read that but its nothing there :| about 2 files its just a instruction to do it with 1 file – Amin Jun 4 at 7:36
0

You must use both files to update your device. First use Update.zip which is the full firmware image, then Update_full_jsn_l21_hw_eu.zip which is the data file.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.