Xperia Z1 C6903 - Third Motherboard already giving glitches - Xperia Z1 Q&A, Help & Troubleshooting

Hello,
I have had two replacements of motherboards (done myself pretty perfectly) on my Xperia Z1 C6903 , purchased either from Ebay or Aliexpress. Both of them started exhibiting same behaviour after some usage (original one and first replacement), that they lose the touch screen/digitizer functionality. The LCD and Touch digitizer is perfect, however it refuses to work with the board. I have tried changing the flex cable an of no use. Maybe during the fitting of the flex cable clips there could be a damage to the pins on the main board. I still have the two boards with me and I tried cleaning and replacing them again and again but of no use.
It is surprising to see that two boards exactly ended up with the same problem. I have now got my third board and it is working fine for touch screen but giving me GPS troubles. I use the GPS regularly on my commute, however the google maps or sygic constantly keeps giving me a message of GPS signal Lost , intermittently and frequently . Have tried all known solutions of clearing the GPS cache from service menu and so on. H
Hence i need to know from the experts:
1. Is there a solution for touch screen problem to be fixed, maybe a software glitch (i didnt update the software anyways since I was using the last version of Dstrikerz ROM).
2. Any solution to make the GPS work stably, have opened and double checked all point/pins/contacts on the body and mid frame which supposedly could be the GPS antenna or cables.
Thanks for your help

Related

Possible Ribbon Problems

My Xperia X1 is currently experiencing problems. The screen no longer lights up!
I started experiencing this problem a while ago, when opening and closing the device.
Day by day everything went from bad to worse and at one point it no longer lit up!
At first I thought there was some kind of screen problem so I bought one new LCD off ebay.
I disassembled my Xperia carefully following a tutorial on youtube.com and replaced the screen. Nothing changed. The screen didn't light up.
The strange thing is that everything else worked! Sound, buttons, vibration etc. all work without a glitch.
I had gave up my hopes of reviving my device and for four long months it simply got dusty. That is, until I found this post :
http://forum.xda-developers.com/showthread.php?t=561151
I opened my device and realised that I have the same problems mentioned in that post.
Thus, in an attempt to solve the issues I opened my phone and took the following pictures.
Please can anybody confirm that I have flex ribbon issues and tell me what I can do to solve this problem once and for all? Can I fix it or do I need a new Xperia flex ribbon?
I can't wait to start using my 'old' device again!
Look like a flex ribbon issue to me. You can fix it by getting a flex ribbon of course. I've had 3 go out on me...thinking about giving up on this phone entirely.
As mentioned in the previous thread re: similar problem, the flex will always be the culprit in any device with slide or flip form factor, not limited to Xperia. Most of the repairs coming in are for flex damage, regardless of the device price and quality.
I had no issues with replaced flexes on Xperia, once installed they serve their life span (albeit short one). It is possible to reinforce the flex, provided your tape is a very fine one, it needs to run in particular place only, e.g. where it is physically rubbed and bent the most.

[Q] No Signal at all after replace the housing

After the replacing of my X1's housing with the new one in the SE Service center I went home gladly with my new X1 housing. I noticed there's an error in signal in my X1 when I was checking my phone at the SE center.. But I thought it was maybe due to poor reception thus I neglected it. (the officer in the SESC say so)
Now I know that there's some new problem arise.. Any idea what might cause this error? the phone can read the Sim card but there is no signal (no connection, no call or no data can be made). i try to check the antenna module, but it seem to be OK (i did not see any problem on it).
the next day i came to the SE center, they said it might be something wrong with the software (since i am used using cooked rom) how come it can make any different while i'm using it before i replace the housing. and they have to take it into the HQ. and guess what, it may take another 6-7 week... WTF
is there anyone having the same problem with me?
Well if you have the tools, you can try openingu p the bottom cover, that little rubber thing where it has the mini sony ericsson logo. Open that rubber up, and you should see a mini screw in the middle, open that up take it out, maybe just give it a quick clean, fit it back properly, and make sure everything is tight and see how that works out.
I've seen/heard a few people having such issue when taking the housing off, and not placing that radio/reception thingy back properly, therefore causing issues with reception.
briian_ said:
Well if you have the tools, you can try openingu p the bottom cover, that little rubber thing where it has the mini sony ericsson logo. Open that rubber up, and you should see a mini screw in the middle, open that up take it out, maybe just give it a quick clean, fit it back properly, and make sure everything is tight and see how that works out.
I've seen/heard a few people having such issue when taking the housing off, and not placing that radio/reception thingy back properly, therefore causing issues with reception.
Click to expand...
Click to collapse
I did it twice, just to make it sure that everything was on their place, also try to flash the ROM, The Radio but still remain the same....
any other suggestion or idea what should I do?
Same problem!
I had disassembled my phone by myself twice; the first time it worked perfectly, the second, unfortunately, it didn't!
I bought a new antenna module for U.S. $10, installed it myself (warranty ended three months ago), walked out of the service centre and voila; I had reception and managed to make a few calls. However, on the way back home, all calls placed while driving dropped every 5km, which means the hand-over between cell towers was failing. The moment I walked home it was dead; no reception whatsoever indoors.
Now the way I see it, this could be due to one of the following two reasons: either the RF power amp failed, which means that most probably the phone needs a new main board (too expensive, not worth it) or something went wrong during the assembly, like the smearing of a sensitive part by skin oil (thus causing a short circuit) or failure to position a connector or multiple ones to connect properly to their respective terminals/connection points.
Upon further investigation, I noticed that my phone wasn't properly grounded; whenever I connected it to a computer to sync using ActivSync or in disk drive mode, I got a small electrical shock (painful though) whenever I touched the phone. This, however, doesn't occur at all when I connect the phone to the wall charger. I disabled USB charging since day 1 of owning my X1i
I believe that the battery cover acts as a ground for the phone electronics; it touches four golden connectors which in turn touch the mini USB port, the GPS/Wi-Fi/Bluetooth antenna, a point on the main board half an inch away from where the loudspeaker is, and the metallic cover placed over the phone RF chips. Failure to ground the phone properly can result in either damaging any of these chips, building up a static charge that affects the antenna performance, or an open-circuit condition for one of the many systems on board.
Since my phone is fully working as a PPC now (PPC functions, Panels, Keyboard, Camera, GPS, Wi-Fi, Bluetooth, etc...) and since I get reception outdoors, and since I have a brand new antenna module, I am guessing that either the RF amplifier is dead, or the housing is ****ed up beyond repair (i.e. it can't be aligned perfectly to get perfect contact on all said points) that it's either shorting a connection, or opening one that is vital for the cellular radio to function properly.
So what to do? Well I forced my phone to do two things:
1. Settings > Phone > Band
- Network type: I chose GSM instead of Auto, as we don't have consumer CDMA in Egypt
- GSM/UMTS Band: I chose the correct band for my provider instead of Auto.
2. Settings > Connections > Advanced Network > Disabled HSDAP
What happened? It worked indoors for a minute, and then stopped working again! Frustrating! So what did I do? I ordered a completely new housing off CNN and will attempt to rebuild the damned thing.
I will update you if I find out anything or reach any results with this phone that I love so much and hate more than anything I have ever hated in my life...
More info!
- During the drive mentioned above, the phone was switching between H, E and G, which means that all three RF chips are, or all components of the whole RF chip if it's one responsible, are working. At one point I got 4 bars of H and call quality was perfect between hand-over failures.
- Before disassembling my phone for the second time, people were complaining about high-pitched static; it can blamed over the mic, the RF (antenna or chip) or humidity levels (which are currently as high as 85%) affecting cellular communication channels.
- Flashing the firmware (R3A Generic UK) and hard-reseting didn't solve the problem.
More Info!
- The battery cover isn't the phone's ground; it's grounded by being connected to four ground points: the mini USB port metallic frame, the GPS/Wi-Fi/Bluetooth antenna ground, a ground point on the main board and the metallic cover over the sensitive RF chips.
- This is definitely an assembly problem. The reception is great outdoors switching between all bands and speeds. On my drive to work today it worked getting G, E, 3G and H all in 4 bars. The signal, however, is completely unstable, jumping from one speed to another. I am more inclinded now to believe that a new housing will fix this problem. Your housing was probably handled poorly at the service centre, which in turn caused this problem.
My advice is to shake them a little bit and see what they will do.
A New Housing didn't fix it!
I purchased a new housing from CNN. It came in good condition. The phone looks brand new now but still no signal. I am sending it in for service. I guess I blew up my Power Amplifiers...
Good luck mate!
melaskalany said:
I purchased a new housing from CNN. It came in good condition. The phone looks brand new now but still no signal. I am sending it in for service. I guess I blew up my Power Amplifiers...
Good luck mate!
Click to expand...
Click to collapse
Same problem haa...
I still waiting for a good news from the service center... I have been waiting for a month..
I wish You a good luck too...
I'm having the same problem. I opened up my phone a few days ago to clean the keyboard. The bottom row wasn't working correctly. Unfortunately after I closed it up again, it wouldn't get any reception (and the keyboard's bottom row was still not working correctly).
So I figured it was the antenna and tried to reposition it. I even removed the rubber layer as described here: http://blog.whitesites.com/How-to-Increase-Reception-on-Sony-Xperia-X1__633958291637656250_blog.htm
Outside I get ok reception, but it's far from stable, inside I get none. And even if I get reception inside, once I pick up the phone, signal drops. So I thought about grounding as well, problem is I even tried rubber gloves and that doesn't solve the problem. I'm afraid replacing the antenna's won't help here and my xperia is dead. Anyone has any other ideas?
Been there too!
I tried the same solution the blog explained. However, I ended up not getting any signal at all. It's only after I purchased a new cellular antenna+buzzer module that the phone started getting an unstable signal outdoors.
Did you notice any small pieces falling off the main board or the housing? It's either a hardware failure or a simple short/open circuit situation that can be fixed in a blink of an eye!
Question
Is there any possible way, hardware or software, to test whether all chips on the main board function properly? I tried the diagnosis tool available here but it doesn't check the chips one by one.
Service Centre
I took my phone to the service centre 6 hours ago. With the new housing on, and new screws that I scored from a secret source of mine, they deemed the phone untouched and serviceable; i.e. it passed for a phone that hasn't been tampered with!
They told me to call back in four days. I will keep you guys updated. Cheers!
I wonder if that'll fix it So to summarize you have:
- new housing
- new screws
- new vibramotor
- new antenna
And those things twice and that fixed it maybe?
I guess it's time for a new phone for me
Vibramotor?
Who said anything about changing the vibration motor? I installed a new antenna + buzzer module; i.e. a new cellular antenna and a new loud speaker (external speaker). The loud speaker is housed within the antenna module. My bad, maybe that part was vague because I never explained it enough.
And yes, it has a brand new housing too. I only installed the lower part though, as the upper part is just fine. Maybe they will fix it man; maybe they won’t I really don't know. I do hope they will fix it though.
I am currently using a backup cheap Nokia and ordered the Sony Ericsson Aspen. If they ever fix my X1 then I can change seamlessly between both phones. If not, then I will just use my X1 as a media/GPS device in my car and an Internet device over Wi-Fi.
Lucky you..... if they can fix yours in a few day... since mine has been in the service centre more than a month, without any news...
they said to me that it will take about 6 week...
What a joke!
The phone remained at the service centre for a week. They called me yesterday, and told me that the phone was fixed and that the total cost was EGP 100 (~U.S. $18). I went over and as soon as I held the phone in my hand to test it, it lost the cellular signal. When placed on the counter, the phone had a constant E signal.
I asked to speak to the manager, who told me that they just reflashed the phone with the latest firmware (Generic UK R3A, which I already had installed). Oh, and before that, he said he was sorry but the phone had a hardware problem and that they don't fix hardware; they only flash firmwares and if that doesn't fix the phone, then the user is pretty much on his own! I refused to receive the phone, so he gave me a refund for my money and promised to have its hardware checked and get back to me in 24 hours!
What a joke, what an f'ing joke! I already regret ordering the Aspen that is due to arrive next week with a friend of mine returning from Paris...
melaskalany said:
The phone remained at the service centre for a week. They called me yesterday, and told me that the phone was fixed and that the total cost was EGP 100 (~U.S. $18). I went over and as soon as I held the phone in my hand to test it, it lost the cellular signal. When placed on the counter, the phone had a constant E signal.
I asked to speak to the manager, who told me that they just reflashed the phone with the latest firmware (Generic UK R3A, which I already had installed). Oh, and before that, he said he was sorry but the phone had a hardware problem and that they don't fix hardware; they only flash firmwares and if that doesn't fix the phone, then the user is pretty much on his own! I refused to receive the phone, so he gave me a refund for my money and promised to have its hardware checked and get back to me in 24 hours!
What a joke, what an f'ing joke! I already regret ordering the Aspen that is due to arrive next week with a friend of mine returning from Paris...
Click to expand...
Click to collapse
OMG...
I do hope that you will get the good news next...
Bad News!
Deep breath... Ok!
Here is the deal: the service centre officially announced that the fault lies within the Mainboard; i.e. my guess that the Radio Frequency (RF) Power Amplifier Chip is toast was correct. They want to charge 90% of the phone's original retail price (which was EGP 4000 = U.S. $700) for a new Mainboard. I replied that that was impossible. They will contact SE's HQ and get back to me on Saturday to see if they can offer any other alternatives.
I guess that is the end of my ride with the X1. I will sorely miss it; it was a great phone while it lasted. Let's hope that the Aspen won't die on me in a year as well...

[Q] Camera, LED, headphones not working. Hardware issues?

My girlfriend's N1 has gradually developed some problems. At first the headphones were not being recognized properly. Then camera stopped working. Now that I've taken a look at it the flash light does not work either. If you call someone, 4 times out of 5 the screen goes blank and you cannot end the call. Sometimes this happens when receiving calls as well.
I was using CM7 before and no additional apps were installed. Tried with or without SD card, rebooting, resetting to factory defaults, putting another ROM, restoring to factory ROM.
The symptoms:
- any camera app starts with a black screen and later throws wait/close dialog
- flashlight apps seem to work but no light is coming out
- headphones do not get recognized, tried 4 brands, compressed air, pushing, pulling, pressing. Not a lint issue.
- immediately after pressing a call I get a black screen which I can come out of by pressing a random combination of keys
I tried moving the camera and LED modules with my finger but nothing happened.
Everything else works: calls, trackball with led, bluetooth, wifi.
I had a similar problem with the flash and camera and it was fixed when I swapped out the main board which also has all the ports your having problems with
Sent from my Nexus One using Tapatalk 2
That sounds unfortunate because the original seller has now closed the shop: site is offline, amazon and ebay products are delisted, does not respond to email.
Even worse, I'm located in Germany and bought the phone here, but I don't really speak the language well enough to contact consumer protection authority and even the HTC support site is all in German. Original box and warranty are in my home country. Sounds like a recipe for disaster.
I've written a mail to HTC support since GooglePhone has closed shop as well.
Since I'm still on a rant, touchscreen has been acting up since day one, upon heating it registers wrong touches, but this is already a known issue.
It was a nice phone while it lasted, but in hindsight I wouldn't recommend it to anyone anymore. It still looks like new fwiw.
locorito said:
I had a similar problem with the flash and camera and it was fixed when I swapped out the main board which also has all the ports your having problems with
Sent from my Nexus One using Tapatalk 2
Click to expand...
Click to collapse
same problem
Hardware
Its hardware issue caused mayb y dropping the N1
so try to replacing ur main board or mayb u can get it repaired if u have a good engineer around u
Thank If my reply helps u ..
Just as an update, the issue with all these phones is the ribbon cable connecting headphone jack, camera, proximity sensor and perhaps [front] speaker. It's probably an easy replacement and the part cost is around 25-40$. The cellphone repair guy said that he has done it a lot of times for this phone type, so it's probably a production/engineering issue.

[Q] Sony Xperia ZR Wifi & Bluetooth functionality Disabled

Hi,
Brought the Sony Xperia ZR a few months ago.
It was giving problem with Bluetooth right from the beginning but haven't bothered about it as I used it rarely.
The wifi initially was working fine, but few days ago it just refuse to turn ON.
When tried to turn ON the wifi using ON/OFF slider it hangs up showing pale blue color & comes back to OFF state.
The exact same thing happens to the Bluetooth slider as well. (See attached screenshot)
Searched in some forums & see many people faced similar problems with their device as well.
However no one have given proper solution for it.
Tried everything from Re-boot, Factory Reset & Phone repair option using PC Comparison...None have worked to resolve the problem.
Some people say it is hardware issue & needs replacement of device however others say they had same problem come back even in replaced phone as well.
There was something mentioned about region code reset mentioned here
android.kul.is/2013/09/sony-xperia-zr-wifi-problem.html
but it looks unverified.
PLEASE provide solution for this issue.
Thanks in Advance.
There are other people who have similar issues, including me. Symptoms vary, but ultimately we are unable to use wifi and BT.
I have an additional issue with no USB connection to PC
Sent from my C5502 using XDA Free mobile app
Will downgrading work?
genieass said:
There are other people who have similar issues, including me. Symptoms vary, but ultimately we are unable to use wifi and BT.
I have an additional issue with no USB connection to PC
Sent from my C5502 using XDA Free mobile app
Click to expand...
Click to collapse
One of my friend is using the same phone for over a year now & have not upgraded to Kitkat & never had any issue.
Do you think downgrading the phone from Kitkat to JelllyBean will resolve this?
Don't know. People say that things work igf you poke the phone at right places. (is the ZR a human to get excited when fingered right?)
I had some success doing it and wifi worked for a few hours. This is obviously a hardware issue.
Sent from my C5502 using XDA Free mobile app
velasoraptor said:
Hi,
Brought the Sony Xperia ZR a few months ago.
It was giving problem with Bluetooth right from the beginning but haven't bothered about it as I used it rarely.
The wifi initially was working fine, but few days ago it just refuse to turn ON.
When tried to turn ON the wifi using ON/OFF slider it hangs up showing pale blue color & comes back to OFF state.
The exact same thing happens to the Bluetooth slider as well. (See attached screenshot)
Searched in some forums & see many people faced similar problems with their device as well.
However no one have given proper solution for it.
Tried everything from Re-boot, Factory Reset & Phone repair option using PC Comparison...None have worked to resolve the problem.
Some people say it is hardware issue & needs replacement of device however others say they had same problem come back even in replaced phone as well.
There was something mentioned about region code reset mentioned here
android.kul.is/2013/09/sony-xperia-zr-wifi-problem.html
but it looks unverified.
PLEASE provide solution for this issue.
Thanks in Advance.
Click to expand...
Click to collapse
It's a hardware fault. There's a flex cable attached to the motherboard that comes loose and this leads to bluetooth and WIFI problems. Bluetooth seems to be the thing that goes first which is what you've seen people complaining about.
You can fix (at least temporarily) by pushing the flex cable in.
1. turn off phone
2. take out battery
3. carefully peel up black adhesive tape that was underneath battery. You only need to peel up top right corner near battery connection.
4. Underneath you'll see flex cable going into main body toward camera.
5. Carefully push this in or get something very thin and flat and carefully slide in under flex cable toward camera.
6. Reassemble and see if it worked.
I haven't had bluetooth in ages. Then my 2.4 WIFI dropped out like yours and I could only use 5G WIFI. FM radio also stopped working. I looked at the disassembly manual and worked out it must be that flex cable as pushing in the body below the flash fixes bluetooth/WIFI/Radio temporarily. I tried pushing flex cable in and voila FM Radio and WIFI started working. A bit more wriggling and bluetooth came back on.
However, it seems to keep coming loose again and so I'm going to have a go disassembling fully soon to see if I can make a permanent fix. Just waiting on replacement glue strips from China for underneath the screen.
It's just a poor quality connector that comes loose. It would be an easy fix if you could access the insides but because it's waterproof the only way to get in is removing screen etc.
Ok. Bad news sorry.
I opened up the phone and had a go reconnecting the flex cable. It didn't fix Bluetooth.
It did fix the 2.4g wifi but only temporarily again.
I think it must be a problem on the motherboard.
Sorry. I really thought I'd figured it out.
sad
:crying::crying:
I felt light of hope but all in vain. I knew that it has a motherboard problem that cant be fixed. Sometimes the phone gets restarted several times it self to activate 2.4 Ghz wifi. It is mother board problem. now the only way of using wifi is either purchasing 5GHz wifi router or creating 5Ghz wifi hotspot through pc or any andorid cellphone.
you should try flashing last version of 4.3 n see if BT n WiFi work as u want
Already tried. It's a hardware problem.
Actually I have another idea. I've noticed that the second Mic doesn't work very well. There's two circuit boards inside, one with Mic and other stuff on it and then the main motherboard. They have two contact points that are just touch contacts, not hard connections. There's shiny metallic squares that make contact. I wonder if they're the issue? It would explain why pressing in that place under the flash activates Bluetooth. However when I looked at them when open I couldn't figure out a way to press them together any closer. I'm going to have another go later today.
---------- Post added at 07:54 AM ---------- Previous post was at 07:51 AM ----------
In saying that, they're nowhere near the Bluetooth antenna. The Bluetooth antenna is actually under the top left corner of the phone when looking from battery side. You can access it by increasing the torx screw and prying up the waterproof cover. The cover has some glue stuff underneath to keep waterproof.
---------- Post added at 07:55 AM ---------- Previous post was at 07:54 AM ----------
Removing not increasing torx. Stupid autocorrect.
Ummm I just flashed stock 4.2 and wifi is fine. 4.3 wifi is dead. 4.4 is dead. What did they change at 4.3?
Bluetooth still not working on 4.2.
Silverdace said:
Ummm I just flashed stock 4.2 and wifi is fine. 4.3 wifi is dead. 4.4 is dead. What did they change at 4.3?
Bluetooth still not working on 4.2.
Click to expand...
Click to collapse
Oh I don't know. 2.4 now working fine after flashing 4.4 again.
It's too unpredictable. However, Bluetooth is definitely dead on mine.
Silverdace said:
Oh I don't know. 2.4 now working fine after flashing 4.4 again.
It's too unpredictable. However, Bluetooth is definitely dead on mine.
Click to expand...
Click to collapse
wifi sometimes gets connected for few hours. After that it again dies
That is work for me
Same problem with me bro.Then i will flash my phone with flashtools and then its works fine
Ok I've figured out the Bluetooth
Just like the WiFi the problem is a poor connection to the bottom board which is free to float around. It was an Idiot who designed this connection, bottom board should have been sitting on plastic shelf or spacers.
I've attached two pictures showing the pin 1 that needs to contact the conductive plate 2.
I fixed by placing small stacks of the screen adhesive under the four corners of the floating bottom board 2.
This forces it up to make a better connection with top board 1.
Obviously you need to remove screen to do this.
However, it may be possible to fix by jamming a small rigid piece of plastic in the top of micro usb slot above the jack as that's the corner of top board that needs to be forced down.
Another alternative maybe to open the corner from the back and try and force the bottom board against the top. There's two screws and some prying to do there.
Also, in addition to the adhesive spacers, I suggest placing some copper tape on the conductive square (2) to improve reliability of the connection. Similarly with the wifi squares which are on opposite side and corner of floating bottom board (2) to the bluetooth square.
My Bluetooth and wifi are now fixed. Yay.

P30 Pro Failed Lower Microphone Issue - Workaround possible?

I really like my P30 Pro but this last week callers have been complaining they can't hear me all of the call. It seems to be this happens for the first 10-15 seconds of the call and then sporadically throughout the call. I have searched the internet and found that the bottom microphone is not working. The reason that sometimes the caller can hear me is that there is an upper microphone which kicks in sometimes. One solution is to use the loudspeaker option - which appears to use the upper microphone all of the time. Apparently using WhatsApp for calls works too. I was wondering if there is a phone caller app which would utilise the upper microphone all of the time (unlike the default Huawei one). I suspect not, but I think it was worth asking. I have read of people having the same issue and replacing the lower microphone/SIM card unit but it still not working. One person who replaced the microphone (which still didn't work) suggested it might be "the analog to digital converter of the microphone signal" which could be at fault.
EDIT : Just to say the phone is still under warranty but I have a quite badly cracked back on the phone (front is fine) so I guess that may invalidate the warranty. The back has been cracked for quite some time though and the microphone issue is only recent
Same happened to me, changed the sim/mic board and its working again
nemesis_rb said:
Same happened to me, changed the sim/mic board and its working again
Click to expand...
Click to collapse
Thanks.. I bought a SIm/Mic board and a USB ribbon/connector. I couldn't fit the sim/Mic board as I couldn't get the connector from the phone onto it so put the old one back (the board wasn't OEM and I don't think the quality was there). I replaced the USB ribbon/connector and the microphone worked. However, the USB connection wasn't great and fast charging only worked with the USB the one way around. I replaced it with a refurbed original ribbon and all is fine. I wonder if just refixing the SIM board and USB cable would have sorted the microphone too a) why would me replacing one part and you replacing a different part sort the same issue? b) I have seen a post from someone who sorted it by applying pressure around the edges of the phone and the SIM area.
I've also started getting this problem. The other party can't hear me on phone calls for the first ten seconds, and when they finally hear me it's very poor quality. Google hotword recognition also isn't working. I'd only seen people saying they'd replaced the sim/mic board and it hadn't helped, but perhaps they didn't change the connector? Good shout, I'm going to try a refurbed cable.
Having issues with the lower microphone that's been listed all over the net, ie delay in hearing me when answering calls and google assistant not hearing me.
Two lower sim/memory/microphone boards later still didn't fix it. For me swapping out the USB ribbon connector has cured it. Just in case this helps someone.
m11kjj said:
Having issues with the lower microphone that's been listed all over the net, ie delay in hearing me when answering calls and google assistant not hearing me.
Two lower sim/memory/microphone boards later still didn't fix it. For me swapping out the USB ribbon connector has cured it. Just in case this helps someone.
Click to expand...
Click to collapse
Can you please show the piece you replaced? Just for reference. I have the same problem
Joshuacr95 said:
Can you please show the piece you replaced? Just for reference. I have the same problem
Click to expand...
Click to collapse
Hi, I replaced the small board as shown twice, but it was the usb lead also shown that ended up fixing it. I'd start with that. Good luck
Hi! I've got the same issue for some time ago... just purchased a new microphone PCB and replaced with no success. Diagnostics on the phone launched a NON WORKING message
Then just surfing the internet I found this forum where I'll share results once I replace the USB charging (and more) flex.
Cross fingers!!
UPDATE!!
** PROBLEM SOVED**
After replacing the charging flex, the microphone is working FINE .
Selfdoagnostics PASSED succesfully for the microphone testing.
▶ I can not realise about what's the hardward problem but it's true it works.
These are cheap pieces, and taking into account I'm in love with this LAST-Google Serviced Huawei P30 Pro... I really believe it will last at least 2 or 3 years more in my hands!!
hiniaky said:
UPDATE!!
** PROBLEM SOVED**
After replacing the charging flex, the microphone is working FINE .
Selfdoagnostics PASSED succesfully for the microphone testing.
▶ I can not realise about what's the hardward problem but it's true it works.
These are cheap pieces, and taking into account I'm in love with this LAST-Google Serviced Huawei P30 Pro... I really believe it will last at least 2 or 3 years more in my hands!!
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Glad you found a solution. I warrantied my phone 9months ago because of the microphone issue. Now it is malfunctioning again unfortunately. The p30 pro has everything i need, still full day of battery. Out of warranty now and prepared to try to repair it by myself. Trying to find how thick tesa tape i need to put it back together, which tape did you use? Do i need Best B7000 glue aswell? Havent taken a phone apart the last couple of years so I need som basic guidance regarding glue and tape.
Best regards

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