Related
so i cracked my LCD a couple weeks back..today i recieved a replacment LCD from htclcd.com ...followed the instructions from the site..now i turn on my phone..and everything works perfectly..exept it cant find a signal anymore...seems to recognize the sim card...everything else works fine..just no signal...where could the problem lie? any suggestions? thanks in advance!
I would be very suprised if the lcd has caused this issue, have you tried a manual network selection yet?
It is likely that you have accidently disconnected or damaged antenna or connection to the antenna. I'd try to disassemble, examine visually that all parts are OK and reassemble the phone.
thats that i was thinking..but i dont know where the antenna is located in the phone so i dont even know where to begin to look
Hi stolli,
please let me know if you could repair your phone I have the same breakdown for the same reasons.
thank you
is there a way to replace the keyboard or fix the problem somehow?
It may just be the Keyboard FPC connector is not inserted firmly enough. See pages 21 and 33 of the manual.
www.mikechannon.net
Mike
Hi, it seems that all lugs looks good, but it is not easy to see if contacts are OK, Wlan, GPS, Bluetooth are OK but not GSM
I tried to connect via VOIP, voip is connected but i always have no services??????
green led is flashing, is it for GSM, wifi or dial?
stephlight said:
Hi, it seems that all lugs looks good, but it is not easy to see if contacts are OK, Wlan, GPS, Bluetooth are OK but not GSM
I tried to connect via VOIP, voip is connected but i always have no services??????
Click to expand...
Click to collapse
did you insert the lugs from the battery side first? the contacts are the gold pieces...if they are intact they should be fine..when you put the tilt backtogether did you put it together firmly, tighting all the bolts? also make sure flight mode isnt on
stolli said:
did you insert the lugs from the battery side first? the contacts are the gold pieces...
Click to expand...
Click to collapse
Yes, I also slightly recovered "lugs" that looks a bit twisted.
Do you with one is used for GSM?
stolli said:
also make sure flight mode isnt on
Click to expand...
Click to collapse
I changed several times mode phone to flight to test the line but still nothing.
I will work in Paris tomorrow, I'll test the gsm signal will be better , but on my other phone with the same Sim all is good.
Thanks.
the reason why the lugs are neceassy is to hold the casing firmly down so the gold connecters touch...make sure that the casing is tightened firmly down..and maybe lift the gold connecters on the main casing a little bit so they stick out more (thats what i did)..make sure not to break them tho..
The problem must come an other part, the lugs are good.
I had great difficulty connect to GSM in Paris yesterday.
I have disassembled it again checked and reassembled but nothing new.
thanks for your help.
Hello
I killed my Kaiser by flashing a Touch Diamond ROM to it.
Sent it to repair service and they say the Mainboard needs to be replaced,but the price for repair is ultragious .
I realy need the device,it was a big help in my confused life style.
Can anyone tell me how can i fix it myself. Or where i can buy a mainboard. Or where can i send the device to repair for a cheaper service?
Thanks in advance for all your help guys.
Some of the keys on my keyboard are dead, any clue? Disassembled several times with no luck...
Doh... looks like the keys are gone.
WOW! It works, when I gave up! Ironic! DD
Ok, so if there happens to be others with the same issue.
Make sure when you connect the golden keyboard connector that the black thin line on it gets positioned exactly where the brown lock ends.
Thought I'd share what I've just done! I (rather stupidly) was listening to music while working on my car - the only headphones I had to hand had a big size (6.35mm) headphone jack, so I had an adapter in there too. Al this meant a rather large lever poking out the side of the phone. I'd obviously bent down to do something and wrenched the socket to one side. The 6.35mm adapter had been bent over and broken... and when I tested the phone I found the socket was broken to - only working in one ear
I went on line and found this guide to dismantle the phone! http://www.youtube.com/watch?v=kGD64_g-ssE
Actually nothing to it! Except Even though I do have a very small set of screwdrivers the screws used on the phone are really small!
I bought a new headphone jack from here for £20.08 delivered : http://www.etradesupply.com/catalogsearch/result/?q=lg+p880
And it arrived in the UK in less than a week from the US!
Out of interest the headphone jack can be removed without any of the other circuit board connectors, or the board itself being loosened.
It also houses the proximity and light sensor, I did put it back together and find the proximity sensor was constantly reading 'near' (using the hidden menu 3845#*880# )So I quickly opened it back up again, removed and replaced it one more time. Now it works great, I must have had it badly placed
Well, at least the video was not published in vain
Nice work!
Sent from my LG-P880 using xda app-developers app
Thanks for decribing this.
I guess I have to replace my jack, too, since it doesnt hold my headphone strong anymore and sometimes the electric connection of the headset mic gets lost.
I have found the jack for about 5$ incl. shipment at DX:
dx.com/p/replacement-earphone-audio-jack-flex-cable-for-lg-optimus-4x-hd-p880-black-golden-177775
(I'm not allowed to insert links)
For me, this seem to fit, but I have seen here, that there is a Version A & B out there !?
w_w_w.etradesupply.com/lg-optimus-4x-hd-p880-earphone-jack-flex-cable-ribbon-headphone-jack-ribbon.html
(I'm not allowed to insert links)
best regards
stef_seidler said:
Thanks for decribing this.
I guess I have to replace my jack, too, since it doesnt hold my headphone strong anymore and sometimes the electric connection of the headset mic gets lost.
I have found the jack for about 5$ incl. shipment at DX:
dx.com/p/replacement-earphone-audio-jack-flex-cable-for-lg-optimus-4x-hd-p880-black-golden-177775
(I'm not allowed to insert links)
For me, this seem to fit, but I have seen here, that there is a Version A & B out there !?
w_w_w.etradesupply.com/lg-optimus-4x-hd-p880-earphone-jack-flex-cable-ribbon-headphone-jack-ribbon.html
(I'm not allowed to insert links)
best regards
Click to expand...
Click to collapse
I got the ETrade one. Also I think parts4repair.com sell parts for the p880.
The little arm you can see poking out actually bends and doubles back under the socket part. I found my screen wasn't waking up when I moved the phone away from my face, I just opened my phone back up and padded it out (between the socket and the sensor part) with a little shim (card etc, I actually cut off and used a little piece of a lens cleaning fine cloth) and now the screen wakes perfectly for me! That was my biggest gripe (apart from huuuuge lag when the browser opens!) and i no longer feel I need to ditch the phone!
Don't lose the little square rubber part that the sensor part sits in! And I recommend using a tiny flat-head screwdriver for the phone's screws, the posi-head screws are so tiny I couldn't get a good fit, and it's all too easy to ruin the tiny screw heads.
on/off button doesn't work.
Anybody know how to fix the on/off button. ?
I'm really pissed, I've had the 4x only 6 weeks and don't think I overused it.
button placement and size isn't that great to start with.
I flashed Arararagi vanir 4.3 and it was running great too.
I've never had any problems with the headphone jack, have my phone for about 4 months now
EnricoDNY said:
Anybody know how to fix the on/off button. ?
I'm really pissed, I've had the 4x only 6 weeks and don't think I overused it.
button placement and size isn't that great to start with.
I flashed Arararagi vanir 4.3 and it was running great too.
Click to expand...
Click to collapse
The on/off button? buy a broken 4x?
I took mine apart a few months back to clean the inside of the screen.
Had to send it back to LG as had a few issues regarding call quality and the screen not coming back on when you take it away from your face - Just got it back and they replaced a case and a lense? Not sure what lense though.
It also said Software update - They sent it back with ICS
Captain Sisko said:
The on/off button? buy a broken 4x?
I took mine apart a few months back to clean the inside of the screen.
Had to send it back to LG as had a few issues regarding call quality and the screen not coming back on when you take it away from your face - Just got it back and they replaced a case and a lense? Not sure what lense though.
It also said Software update - They sent it back with ICS
Click to expand...
Click to collapse
they probably even permanently locked your bootloader, if it was unlocked your "phone not turning on when moving away from ear" problem was sensor miscalibration that you could've fixed easily.
on/off button doesn't work.
Captain Sisko said:
The on/off button? buy a broken 4x?
I took mine apart a few months back to clean the inside of the screen.
Had to send it back to LG as had a few issues regarding call quality and the screen not coming back on when you take it away from your face - Just got it back and they replaced a case and a lense? Not sure what lense though.
It also said Software update - They sent it back with ICS
Click to expand...
Click to collapse
No. it was new when I bought it.
Had it for 6 weeks before the power button stoped working.
just used it everyday, rooted it, a few roms, then daily use.
i expect something like this from a cheap chinese knockoff, not an LG 4x. i had a star b92m where the screen became unresponsive.
next time I'll get a SONY XPERIA Z.
The 4x has been in the shop for two weeks already. .
OverVoltage on the headphone jack =(
I believe is overvoltage, I connected a plug from my radio for louder music(as I usually do) but wasn't working, and tried moving the connector on the radio and instead of plug in input from radio, I plugged in the output from the radio, a sound came from the radio and that was it, no more sound signal from my P880, I love this phone, I'm so angry about this.
So I checked with earphones and nothing, just noise, no volume up or down, and the headphone mode is turned on all the time, do you now a site where the earphone jack flex can be delivered to South America, Bolivia? and if you have some other suggestions or solutions specially for taking out of headphone mode, I even can't make calls! thank you in advance
The two parts places I have used are I have used are etradesupply and parts4repair. There's probably lots of others out there. Not sure where they ship to though
RolandoAmir said:
I believe is overvoltage, I connected a plug from my radio for louder music(as I usually do) but wasn't working, and tried moving the connector on the radio and instead of plug in input from radio, I plugged in the output from the radio, a sound came from the radio and that was it, no more sound signal from my P880, I love this phone, I'm so angry about this.
So I checked with earphones and nothing, just noise, no volume up or down, and the headphone mode is turned on all the time, do you now a site where the earphone jack flex can be delivered to South America, Bolivia? and if you have some other suggestions or solutions specially for taking out of headphone mode, I even can't make calls! thank you in advance
Click to expand...
Click to collapse
Hi, im also from Bolivia try this
PM if you need any help!
Ben-B said:
Out of interest the headphone jack can be removed without any of the other circuit board connectors, or the board itself being loosened.
Click to expand...
Click to collapse
Hi,
Sorry but I don't understanting ... in the video the motherboard is removed. You replace the headphone jack without removing it?
Thanks
I replaced the speaker in my i897 and now I get no signal for WiFi, Bluetooth and cellular service. I pulled the case back off and noticed the smaller gold spring loop that makes contact with the inside of the case in the corner near the camera is broken off. Would this be causing my issue or is the new speaker or something else to blame. Where do I start diagnosing and is there a DYI to fix the broken gold spring piece. (Identical to the one that touches the battery cover but smaller and under the case.
Thanks, I'm not ready to give up this phone.
rogleete said:
I replaced the speaker in my i897 and now I get no signal for WiFi, Bluetooth and cellular service. I pulled the case back off and noticed the smaller gold spring loop that makes contact with the inside of the case in the corner near the camera is broken off. Would this be causing my issue or is the new speaker or something else to blame. Where do I start diagnosing and is there a DYI to fix the broken gold spring piece. (Identical to the one that touches the battery cover but smaller and under the case.
Thanks, I'm not ready to give up this phone.
Click to expand...
Click to collapse
I haven't opened mine in a while but if I remember it right, the connections are right beside the speaker so you most likely damaged it. I can't help you much myself on how to repair it but mobiletechvideo.com might be able to (or even repair it for you). Good luck!
BWolf56 said:
I haven't opened mine in a while but if I remember it right, the connections are right beside the speaker so you most likely damaged it. I can't help you much myself on how to repair it but mobiletechvideo.com might be able to (or even repair it for you). Good luck!
Click to expand...
Click to collapse
The white antenna cable near the speaker appears fine, the new speaker works fine, WiFi works withing 8' of the router. Leads me to believe there is some antenna connection servicing BT/WiFi/cell in one not making a solid connection. Its not the large white cable though.
rogleete said:
The white antenna cable near the speaker appears fine, the new speaker works fine, WiFi works withing 8' of the router. Leads me to believe there is some antenna connection servicing BT/WiFi/cell in one not making a solid connection. Its not the large white cable though.
Click to expand...
Click to collapse
Our phone is known to have bad signal (Wifi, GPS and such) when there's something covering the top of the phone so perhaps there's something interfering near the antenna?
Hi,
I really need your help as I have no idea what to do.
After 1 month of using MI5 Pro Ceramic black I have broke my phone,First the touch worked and there was only vertical lines on the lcd in the spot of the shatter so I could operate but due to my stupidity and of force touching the broken glass these vertical lines started to cover all the screen (Everything worked well on the phone..Sound,Camera and etc..)
So I ordered from Aliexpress LCD + Touch screen for about 70$ (Included DHL Express shipment)
When I got the screen I started to disassamble the phone.. Got everything out,Took out the broken screen and pasted the new screen on the frame (Must say all these aliexpress screens are really bad,0% protection on the screen,Not sure about the LCD quality yet but glass is horrible..Started to scratch even before I used it)
Anyways to our point..
Started to assamble back everything.. Powered on the phone and Yay! Phone is working but...
No Sound,Firstly I checked settings and everything..Ran CIT test and everything that belongs to audio giving force close..
Calibrate Speaker PA test results : State-Get impedance failed!,Speaker Vendor-None
Vibration- FAIL no short and no long
Main mic speaker Feedback,Simulation call test,Front mic speaker feedback test,Top mic speaker feedback test,
everything when I enter it giving FC with that details :
"IlegalStateException:Unable to retrieve AudioRecord pointer for SetParameters() blablala...
Headphone mic feedback test (Called on an uninitialized AudioRecord)
So in short..
No Speaker,No Mic,No headphone Mic..
Now my question is what I need to do from now.. Its not firmware/software problem for sure as before I disassambled the phone everything worked well..
My first guess was the problem is on the Sub PCB but then I asked my self..If the USB-C is working and WiFI antenna giving full signal it means the Sub PCB works so what the hell is the problem? I really hope its not something in the PCB it self as it means throw everything to garbage.. ;<
Hope to hear suggests..
I thought to order the MI5 32GB Black version take out the Main PCB put the Pro Main PCB and put also the ceramic back cover but that I would do only if I know that the problem is from the sub PCB but if Headphone mic doesnt work (Which the Main PCB take care of) then its probably in the Main PCB??
Please help!
you didnt damage the pins on the press connector? is the press connector on the ribbon cable flush / fully inserted ? Are you sure you didnt kink the ribbon cable?
I haven't pulled a mi5 apart, but can only assume its like every other phone i have.
leighaus said:
you didnt damage the pins on the press connector? is the press connector on the ribbon cable flush / fully inserted ? Are you sure you didnt kink the ribbon cable?
I haven't pulled a mi5 apart, but can only assume its like every other phone i have.
Click to expand...
Click to collapse
The problem is that far as I understood of how the mi5 built and from how I saw it looks like..The Speaker located in the Sub PCB cover,Vibrate connected to subPCB,And all the SubPCB connected with the cable to the main PCB and I checked it connected good and no any damaged pins from what I was able to see..If there was damaged pins then the phone wont get charged as the USB-C wont be connected as it located in the SubPCB however it does work.. So I really have no idea what cause it..
Also the Headphone mic doesnt work in the tests..Anything related to Audio giving that FC with "AudioRecord" error..
I really must to know what causing it so I will know what to do ;<
Little update,
Just connected a bluetooth speaker,No any sound nothing..
Hi everyone! My MI5 has the same problems, no sound, mic, vibration, led buttons light, plugin earphones without notification's icon, can not play music, video offline and online video (Youtube, Facebook, live stream ..). It was happened when i replaced brooken screen. The first time when I turn on, evetything ok, I can play music through speaker, but now everything has gone..! Plz tell me how to slove this problem! Sorry for my poor E!
Hi, I ended up on buying the phone again... It's impossible to fix that problem as probably you did what I did and didn't place the motherboard correctly so a little bent probably happened and that cause to the problem.
edoroom said:
Hi, I ended up on buying the phone again... It's impossible to fix that problem as probably you did what I did and didn't place the motherboard correctly so a little bent probably happened and that cause to the problem.
Click to expand...
Click to collapse
Hi there! Care to elaborate a little more? I have also the same problem. I was replacing the rear camera module while the module I had received was broken to begin with. I hadn't really figured this out initially and I tried several times to attach it and test it, perhaps move the flex and retest, and at some I remember I found out the vibration was not there, but didn't pay attention to it as everything was open, until I found out the camera module was faulty in the end, and subsequently discovered also the whole issue with sound/vibration/key backlight etc. Instead of buying a new device, I was thinking to try and fix it, but still I'm a bit unsure about what the problem really was. From what I could figure, I didn't do anything different this particular time the audio/vibration didn't work, with respect to the previous times I attached and detached the motherboard. But is it definitely the board itself and not its flex connecting it to the sub-pcb? Could it be the sub-pcb itself or even both this and the board? In case I buy a new board (perhaps together with a sub-pcb just in case) to replace it which part should I watch out for, not to damage it again. Sorry for the many questions but you seem to be the only source of info for this specific problem.
deusxx said:
Hi there! Care to elaborate a little more? I have also the same problem. I was replacing the rear camera module while the module I had received was broken to begin with. I hadn't really figured this out initially and I tried several times to attach it and test it, perhaps move the flex and retest, and at some I remember I found out the vibration was not there, but didn't pay attention to it as everything was open, until I found out the camera module was faulty in the end, and subsequently discovered also the whole issue with sound/vibration/key backlight etc. Instead of buying a new device, I was thinking to try and fix it, but still I'm a bit unsure about what the problem really was. From what I could figure, I didn't do anything different this particular time the audio/vibration didn't work, with respect to the previous times I attached and detached the motherboard. But is it definitely the board itself and not its flex connecting it to the sub-pcb? Could it be the sub-pcb itself or even both this and the board? In case I buy a new board (perhaps together with a sub-pcb just in case) to replace it which part should I watch out for, not to damage it again. Sorry for the many questions but you seem to be the only source of info for this specific problem.
Click to expand...
Click to collapse
Hi sorry for late answer,I barley visit xda these times..
After I bought the MI5 again this time in the 64gb version I tested the old 128gb motherboard (The main one) and still same problem with Vibration/Sound (While all sensors work camera too)
Which means its not the sub-pcb problem,Its the main motherboard for sure,Now what cause it?
In my opinion when I pulled of the motherboard to put it on the new screen I insert it in a bad way which made it bent a little and probably the place I bent is where the audio and all the stuff goes on..
I'm pretty sure we cant really do something about that problem as problem related to motherboard it self are usually not fixable,But if you find something I will glad to get a feedback to test on my own bad motherboard so maybe I can back to the 128gb version ;| but I doubt it..
edoroom said:
Hi sorry for late answer,I barley visit xda these times..
After I bought the MI5 again this time in the 64gb version I tested the old 128gb motherboard (The main one) and still same problem with Vibration/Sound (While all sensors work camera too)
Which means its not the sub-pcb problem,Its the main motherboard for sure,Now what cause it?
In my opinion when I pulled of the motherboard to put it on the new screen I insert it in a bad way which made it bent a little and probably the place I bent is where the audio and all the stuff goes on..
I'm pretty sure we cant really do something about that problem as problem related to motherboard it self are usually not fixable,But if you find something I will glad to get a feedback to test on my own bad motherboard so maybe I can back to the 128gb version ;| but I doubt it..
Click to expand...
Click to collapse
Many thanks for the response! It sheds a little light indeed. I also ordered another phone to replace it as the cost of the motherboard seems to be equal approximately close to a new device. I'm with you, in the same view, I also once placed the motherboard quickly in the chassis without the screw that holds it together, in one of the 50 or so attempts to try and make the camera sensor I was replacing, visible to the OS, and this looseness was the unfortunate one perhaps (?). I too don't expect the sound to work again. I just wanted to double check the issue was not with the sub-pcb, which I did thanks to you. For sure I have no hopes for the mainboard to work again, but still, what keeps me from being certain it is actually the sound card that is the problem, is a very similar case I saw In a foreign forum, and also clues from my device which support the argument that the mainboard might have entered in a kind of diagnostic boot state due to a hardware fault that was apparent, where either some components are not initialized during boot, or their HW resources are taken over from the diag. ports and irqs that are enabled, in which case the issue can perhaps be fixed. For sure whenever I find a good deal on a new motherboard I will replace it, to keep it as a secondary phone, as I liked it quite a bit, but It would be interesting to see if this hypothesis holds or not. Anyway thanks again for the response!
Hi,
I've bought used mi5 with broken screen. After LCD replacement I've found that that phone has problem with sound. Exactly the same as in this thread - no sound, mic, vibration, led buttons light, plugin earphones without notification's icon, can't play music, video offline and online video (Youtube).
Someone already did LCD replacement on this phone and probably done something.
But what I discovered on this phone that problem start when battery charge aprox more then 60%.
I did flash one year old ROM via fastboot ( just to verify if it not the ROM problem) and after that everything was fine ( battery level 50%).
I did hardware test - passed 100% fine.
But when I did charge till 100% the problem come back.
That's really interesting finding... Can you tell me the same steps you did like which rom you flashed and all of that? I will check it with my dead phone maybe if I will have the same thing like you we can point on something...
mi5 lcd replaced touch not working
I bought a mi5 mobile in singapore. My display was damaged. I changed many display in india (checked in many shop). only work display (lcd). Touch not respose. please some one give solution. thank you
have same problem with op
my phone get damaged by water so im rush turn it off and open everything then go to dry it... and problem with speaker etc doesnt work just like op please help i really doesnt have money to buy new phone this month
Exactly same problem with me, just replaced the rear camera and the problem occurs
No sound, no vibration, nav led not working at all, playing video not working
Even playing sound via bluetooth speaker not working too
I believe there is something wrong with the mainboard
can anyone point out which part of the mainboard responsible for the lower board?
The lower board works well though, I tested it using other mainboard
codearm2 said:
Exactly same problem with me, just replaced the rear camera and the problem occurs
No sound, no vibration, nav led not working at all, playing video not working
Even playing sound via bluetooth speaker not working too
I believe there is something wrong with the mainboard
can anyone point out which part of the mainboard responsible for the lower board?
The lower board works well though, I tested it using other mainboard
Click to expand...
Click to collapse
For me the problem was that after the screen replacement (It may also apply to you after you replaced the rear camera..)
When I put back he main motherboard it wasnt sat properly,I put it beneath a small plastic holder and when I closed everything and screw and all..Problem appeared and when I rechecked motherboard I found out it got bent in the right down side and that's probably what killed all the sensors,sound and everything..
Of course that what happend to me..There is plenty of other reasons that may cause to what you experience..
edoroom said:
For me the problem was that after the screen replacement (It may also apply to you after you replaced the rear camera..)
When I put back he main motherboard it wasnt sat properly,I put it beneath a small plastic holder and when I closed everything and screw and all..Problem appeared and when I rechecked motherboard I found out it got bent in the right down side and that's probably what killed all the sensors,sound and everything..
Of course that what happend to me..There is plenty of other reasons that may cause to what you experience..
Click to expand...
Click to collapse
I believe the chip or something similar, that control the sensor, led, vibration etc, was broken because we put it the wrong way
now we need to find which chip it is and replace it
which part of the right down? near the signal cable?
codearm2 said:
I believe the chip or something similar, that control the sensor, led, vibration etc, was broken because we put it the wrong way
now we need to find which chip it is and replace it
which part of the right down? near the signal cable?
Click to expand...
Click to collapse
If you just checked and saw you put it wrong as I did,On the little plastic which made a little bent then I guess you lost..I would just buy new motherboard on aliexpress or just give up and buy a new phone..
As you cant really know (I mean from our side..) if its a chip related there or if its the bent it self which made problem on the connection on the board it self..
And yes I was speaking about the right side near the signal cable where you need to install the motherboard from that side where there is a little plastic like holding the motherboard..When I did the reinstall by not checking I put the motherboard on that plastic and after I closed everything and all screws got back I discovered that problem..
edoroom said:
If you just checked and saw you put it wrong as I did,On the little plastic which made a little bent then I guess you lost..I would just buy new motherboard on aliexpress or just give up and buy a new phone..
As you cant really know (I mean from our side..) if its a chip related there or if its the bent it self which made problem on the connection on the board it self..
And yes I was speaking about the right side near the signal cable where you need to install the motherboard from that side where there is a little plastic like holding the motherboard..When I did the reinstall by not checking I put the motherboard on that plastic and after I closed everything and all screws got back I discovered that problem..
Click to expand...
Click to collapse
yeah, it means it's the same mistake as mine, that little metal thing that hold the motherboard, I forgot to eject the sim card tray and when I pull my main board it was stuck, got a little bent from there
Just wonder if anyone have the schematic for mi5 mainboard, since I'm curious and want to find a way to repair it
Not because I'm in despair of needing a phone, this MI5 is my secondary phone
Just because of the curiousity, that's all
edi--
found the schematic here
https://data.dendik.id/Data/Schematic/Xiaomi/Mi5_SM.rar
now on the journey to repair this stupid mistake, lol
any help from someone who are an expert in this thing will be really appreaciated
codearm2 said:
yeah, it means it's the same mistake as mine, that little metal thing that hold the motherboard, I forgot to eject the sim card tray and when I pull my main board it was stuck, got a little bent from there
Just wonder if anyone have the schematic for mi5 mainboard, since I'm curious and want to find a way to repair it
Not because I'm in despair of needing a phone, this MI5 is my secondary phone
Just because of the curiousity, that's all
edi--
found the schematic here
https://data.dendik.id/Data/Schematic/Xiaomi/Mi5_SM.rar
now on the journey to repair this stupid mistake, lol
any help from someone who are an expert in this thing will be really appreaciated
Click to expand...
Click to collapse
ok bruh im already do some fking around and do ic audio replacement but no hope its still broke even my repair guy who are ex xiaomi worker are give up the problem is looks like from cpu its self but there was something interesting if u try download device info hw app in google play there was warning that the device cant read sys or something cuz it was blocked and when u look at audio chipset its was gone
feel2death said:
ok bruh im already do some fking around and do ic audio replacement but no hope its still broke even my repair guy who are ex xiaomi worker are give up the problem is looks like from cpu its self but there was something interesting if u try download device info hw app in google play there was warning that the device cant read sys or something cuz it was blocked and when u look at audio chipset its was gone
Click to expand...
Click to collapse
Yeah, tried it before, and the audio chip is gone
Perhaps something wrong with the audio chip, will try to replace the IC tomorrow
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
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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.
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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
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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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Click to collapse
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