HTC One M8 no sim found?

formby · 29 Jun 2015 at 18:01

I have been trying to fix a HTC one M8 with the dreaded no sim found problem.
What I've done so far without success is :

Tape on top of sim
Test with new sim
Replace sim tray
Replace sim holder and flex
Reset phone
Re-install OS
Turn on/off aeroplane mode

Would anyone know if replacing the daughter-board help?
or is the problem on the logic board.

kona786 · 29 Jun 2015 at 18:33

It has a 2 year warranty. Let HTC deal with it.

reflux · 30 Jun 2015 at 10:26

I had to send mine back to HTC. they sorted it out.

I think it's telling that the m9 has a completely new sim tray, much more substantial construction.

formby · 30 Jun 2015 at 16:05

It's been rooted so no warranty.
What I understand that the daughter board has the following functions:

NXP 44701 NFC controller

Bosch Sensortec BMP280 pressure sensor

Qualcomm QFE1550 dynamic antenna matching tuner

so I'm unsure that changing the daughter board will have the desired affect ?

Clairvoyant · 30 Jun 2015 at 18:13

I thought HTC liked people rooting and moding their phones.

formby · 30 Jun 2015 at 21:49

They probably do if they can get out of the warranty, especially when they are prone to this problem.

Clairvoyant · 30 Jun 2015 at 23:41

Even tho you have routed, no harm in contacting HTC. You never know if it is a common fault. (Fingers crossed mine doesnt break)

formby · 1 Jul 2015 at 09:14

It''s a friends in for repair. Searched the net for answers and it's a common feature of this phone, sadly no-one seems to have found the cause so I think I'm going to swap the daughter board and see if it's the perpetrator.

reflux · 1 Jul 2015 at 09:20

Clairvoyant said:
Even tho you have routed, no harm in contacting HTC. You never know if it is a common fault. (Fingers crossed mine doesnt break)

Yes, there are stories of people getting their phones fixed by HTC despite it being rooted/modded. In fact, I don't think from my experience HTC usually refuses repairs for this reason.

TechMinerUK · 2 Jul 2015 at 10:09

You can still return a phone even when it has been rooted, just in case though it is always advised to flash the stock ROM so it is unrooted and appears like it hasn't been meddled with.

Anyway, it sounds like a hardware issue as unless you've been flashing different modem files/ROMs to the device it shouldn't cause issues to the SIM card detection.