Why you want flash it via EDL if it's already unlocked?
Its my sister phone, yes already unlocked but she has a problem with lose signal/range.
Example show only emergency calls, signal comeback and many times like that.
Next show range but cant call and send sms/mms.
I installed 1 November Xiaomi.eu 7.10.26 and work fine until to 26 november wuth this rom. After that date have this issue.
1.She try change sim card slot - not help.
2. She install 7.11.30 - not help
3. She do wipe cache, dalvik - not help.
4. Her boyfriend change his sim cars to her phone and her sim card to his phone.
Her sim card dont have issue in his phone.
His card in her phone have this issue too.
Today i will be doing flash via Xiaomiflash on fastboot mode or edl mode.
I'm just wondering if in fastboot or edl mode better.
Well, is it better on any particular Miui 8 or Miui 9. I've seen here on the forum, like on Miui 9, what poor range was, etc.
I think that can be a hardware issue, but i think better try flash before i send to any service.
Can You suggest me best way or what do You think?
Its Redmi 4 - Prada. Officialy unlocked, flashed twrp and now Xiaomi.eu 7.11.30.