Replaced the screen, all starts fine, WiFi works but says no service.

Antenna is secured to the frame properly.

Coax cables are snapped in firmly and are not mixed up.

Tried resetting network settings

Cleared Cache

Performed factory reset.

Any other ideas?

Thanks

⟐ Commented July 14, 2023 at 14:12 MST

He managed to replace the screen but now my phone will only connect to Vodafone network when plugged into a charger.

If i remove the usb from the charging port it goes to no service

⟐ Commented September 28, 2021 at 3:03 MST

Event logger app gives no indication of what the problem is. Phone is not in direct use when it happens. It's not the Fitbit app, which I know can be a problem. Not France24 news app either, even though that doesn't work as it should (1 in 40 notifications come trough, roughly, just like with Skype, but it's more normal with Skype to act like that).

Any other apps that might be the culprit? The Messages (SMS/MMS) app is taking more out of the battery than it should for the lack of usage, but I can't remove it. Same with Phone app.

⟐ Answered September 19, 2024 at 11:18 MST

⟐ Answer edited May 13, 2020 at 23:15 MST

So I need to buy new male connectors. Do you know which fit exactly to the P20 pro board and and where to buy them?

⟐ Commented May 23, 2023 at 16:05 MST

⟐ Commented March 22, 2024 at 20:03 MST

⟐ Commented March 03, 2025 at 9:34 MST

What I tried:

• Restarting it to see if it’s a software issue. It restarts, but the screen is still black. I even tried to go to recovery or bootloader and the screen still is black.
• Opened it up to see the screen connector. It wasn’t loose, nor dirty or corroded. I cleaned it up regardless, but still it doesn’t work.

So, I want to know if someone has experienced something like this… I don’t know if it could be a screen problem (since it’s in mint condition and the touch works), or it could be something related to the motherboard.

Any ideas? Thank you in advance!

Edit 07/10/2020:

I checked out the screen for a backlight issue, and I didn’t saw any images, but I noticed this blueish line underneath the phone, followed by a faint dark thick line. It covers the whole bottom of the screen. Could that be signs of damage of some sort?

It also goes up a bit from the side.

Edit 23/10/2020:

A CHANGE OF SCREEN FIXED THE ISSUE.

Before the change I fully opened it up, and it showed that water entered from the bottom right speaker. The mic board was fully corroded, and that blueish line that I saw inside the screen was indeed corrosion.

Thank you for guiding me in the right direction!

⟐ Answered May 22, 2024 at 8:06 MST

My P20 Pro has a problem since being repaired. My microphones appear to be muffled, and do not pick up sound well. They seem quiet but also extra sensitive to physical contact with the phone itself. Would this potentially be the result of dust build up? And is there a simple way to hopefully remove any blockages? Cheers.

⟐ Commented November 03, 2021 at 16:56 MST

Any ideas what may have caused this? Isopropyl maybe (it was only 70%)?

⟐ Answer accepted October 19, 2021 at 14:13 MST

⟐ Answer deleted July 22, 2021 at 13:48 MST

I cant seem to find info regarding the location of the microphone that is used for video recordings, loudspeaker etc. This is not the bottom microphone near the charging port, that one is used for phone calls. Does anyone know where the second microphone is located? TIA

⟐ Commented October 13, 2020 at 9:49 MST

So first I tried shaking water out of speakers and other holes. But the phone should be IP67 water rated. But now as mentioned earlier the screen does not respond to touches at all. So now I put my phone in a plastic bag of rice ~ 15-20 minutes ago and I am going to wait and see what happens. Anyone got any idéas on what it can be and is it cheap or expensive to fix if needed special fixing, and lastly where can you fix it? Huawei’s own support and repair or just any repair shop?

I am really stressed out about the situation right now because I am getting a new phone tomorrow and my mom is supposed to take over this phone and I really don’t want it to be broken over less water than in a normal-sized glass of water pouring.

⟐ Edited by author October 25, 2025 at 9:07 MST

⟐ Commented March 19, 2025 at 10:02 MST

⟐ Commented November 25, 2024 at 15:26 MST

⟐ Answered February 02, 2024 at 18:28 MST

⟐ Answered February 02, 2024 at 16:26 MST

An acquaintance dropped her phone, after which half of the screen worked for an instant, but then went dead. She would like to have the photos restored that were on the phone (internal memory!), but I think it would be a fun challenge to see if the phone can be repaired

After connecting to the charging port, the charging light flashes.

Shining a flashlight on the screen doesn't show anything, the screen really seems completely dead.

Turning on/off has no effect.

Phone is not recognized by laptop when connected

The phone still looks completely intact, there is no crack or dent anywhere. Only the glass back was a bit loose, so I already removed it. No visible damage on the inside either, after removing battery and motherboard.

Any advice on next steps?

Thanks in advance!

⟐ Answer accepted October 04, 2022 at 10:57 MST

I have checked the connection which is secure and hope I haven't damaged the flex cable as I was super careful! Is there anything else I can do?

⟐ Answered September 06, 2022 at 16:29 MST

Anyone have any ideas?

Thanks for your help

⟐ Answered January 01, 2022 at 18:49 MST