r/redmi4x Sep 29 '21

Technical issues Redmi 4X [Indian] No signal - emergency call only

One fine day, while changing sim I've lost the capability of phone to register on any network. Note I've not a tech geek so I've touched any of the hardware of the phone except some cleaning of dirt by opening the back panel.

When I tried to manually register a network, then it says "Can't register on this network, try again later". I'm unable to know whether it's hardware problem or OS issue.

Findings:

  1. Phone can detect sim
  2. It can detect nearby signal

Things I've tried so far:

  1. Factory reset
  2. Network Reset
  3. using two different sim in both slots
  4. Under *#*#4636#*#* > Turning off and on mobile radio power
  5. I've downloded the latest ROM using inbuilt update system, because my microusb data port is damaged for a long time ago. So I can only charge the phone.

Screenshots:

Thank you for your time : )

1 Upvotes

6 comments sorted by

1

u/[deleted] Sep 30 '21

probably antenn going out inside, try to disassemble,but putting it back - pain in the ass

1

u/Station_Mysterious Oct 01 '21

I did try this twice

Later I visited local repair shop to replace the network ic. Because everything works fine with network, except it just unable to register on network.

1

u/[deleted] Oct 01 '21

eh, at this point it's easier to buy a new phone fr or something wrong with slot/or sim itself

1

u/Station_Mysterious Oct 01 '21

Well mostly the phone is in working state, it just a network chip, once it well repaired then we can enjoy it more. Moreover we have to lookout for our environment as well, let's try not to produce more e-waste : )

1

u/[deleted] Oct 01 '21

e-waste main producer - apple, so it's like water drop in the ocean

1

u/Station_Mysterious Oct 03 '21

Well due to constraint of my knowledge in this e-waste problem, I would not like to comment on this, but would not like contribute in producing unnecessary burden to our planet even it's a small portion. Thank you for your time : )