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hi
i have a htc touch plus or as they call it htc touch dual.digitizer issue it stoped responding so i bought new one fitted in and still the same problem .i think is a software problem i guess driver software for touch screen .if any one can help please
thanks
Touch Dual digitizer
Hi Saliml2
Not convinced it is a software issue. My digitizer on T-Mobile Touch Plus did the same thing. It stated behaving erratically and then stopped responding altogether. I replaced the digitizer (via eBay) and it work for a few days and then stopped again.
I have read around the internet and have tried several ROM updates etc (currently running a WM 6.5.5 found in other area of this forum) but this has not solved the problem.
It seem to be an alignment issue - i.e. screen alignment is outside the screen area, but there seems to be no way of getting it back. Could be a fault on the phone mainboard (?) but there doesn't seem to be any info around apart from sending it to HTC for repair (not viable as the phone value negates this)
My phone is still not working, I might try opening it up again and reseating the digitizer cable but have done this twice already.
Have you try change the flex cable?
I had one to, with the same problem, and after changing the flex everything was ok...
Good luck!
Hi Amokh Just to clarify, what is the flex cable? The digitizer has a cable already attached to it that plugs in to a zif connector on the mainboard - I assume that this controls the data flow for the digitizer.
Any help would be appreciated.
deepthought2471 said:
Hi Amokh Just to clarify, what is the flex cable? The digitizer has a cable already attached to it that plugs in to a zif connector on the mainboard - I assume that this controls the data flow for the digitizer.
Any help would be appreciated.
Click to expand...
Click to collapse
Maybe this is helpfull http://www.pdacenter.ru/razborka/razbor_htc_touch_dual/
Goodluck
Flex cable, i was mean the cable between the mainboard and the lcd block, you can see it in the previous link, picture 20. Have you try it to change?
hello guys how did you manage to put the digitizer cable in place mine doesn t seem to get in place do i need something to hold the connector in place???
Hello all.
While I was taking my HD2 apart to replace a cracked screen (glass digitizer) I accidentally broke the connector off one of the wires. The wire is black and a few inches long with a silver and round press on connector on each end. It attaches to the board that houses the vibrator motor and runs down the right side of the phone (if you were looking at it face down and partially disassembled).
Unfortunately, I lost the metal piece that broke off the wire (the thing is tiny!), so I can't just solder it back on. Any idea on where I can buy a replacement? I've spent about 6 hours today on ebay and google to no avail. Searching for "HD2 black wire" and anything similar is hardly efficient, but that's all I know about it.
Any help appreciated.
Thanks,
Chris
Good question, I think I damaged the cable to the volume buttons so it would be cool if someone has an adress where we can get spare parts except LCD and Digitizer..
this guy on ebay seems to be selling an HD2 in parts. you might find what you need here:
http://stores.ebay.co.uk/Right-Click-Enterprises/_i.html?_nkw=hd2&submit=Search&_sid=131407386
Thanks, I sent that guy a message and hopefully it'll work out.
Anyone else have a source?
connector of my hd2 is also broken HTC says that the mainboard must be change and I have to pay € 230 because that is my responsibility
I think you have damaged your coaxial cable connector for wifi and bluetooth. Google will help you perhaps.
I believe that my wifi/bluetooth cable is broken, as I have no wifi or bluetooth signal since dropping my phone as reported in a previous post of mine. Can anybody advise me on the difficulty of undertaking this repair myself, does it involve complete disassembly of phone, any soldering etc. If this is the case I don't feel confident enough to do this so does anybody know of someone who does this sort of repair, I have found the cable on e bay for £7 and it looks like it has push on connectors ?
if the connectors on the boards are not broken then all you need is the coaxial cable with connectors on the two end. you need not disassemble the whole set, just open the back cover, connect one end of the cable to mother board and other end to the rigid flex board and that's it.
WiFi and Bluetooth not working
raincybercafe said:
if the connectors on the boards are not broken then all you need is the coaxial cable with connectors on the two end. you need not disassemble the whole set, just open the back cover, connect one end of the cable to mother board and other end to the rigid flex board and that's it.
Click to expand...
Click to collapse
Do you think that this is my problem as since I dropped my HD2 I have no wifi (unless sat ontop of router) or bluetooth or fm radio, is it easy to get to the coax cable by removing back cover, whereabouts is it ?
raincybercafe said:
if the connectors on the boards are not broken then all you need is the coaxial cable with connectors on the two end. you need not disassemble the whole set, just open the back cover, connect one end of the cable to mother board and other end to the rigid flex board and that's it.[/QUOTE
Fixed it, opened up phone and spotted that at one end of the black wire the connector was not pushed onto the motherboard securely, I pushed it home and hey presto, wifi and Bluetooth now working, phew, Thanks for your help !
Click to expand...
Click to collapse
Hi,
I recently replaced my usb flex cable, and my signal has been very weak ever since. I have tried loosening the screws and removing the small wire (aerial) and putting it back on, but my signal is still very very poor. Has anyone else had this problem after disassembly?
It may not be relevant but i'll mention it anyway. The screwdriver I used had a slight magnetic charge, just enough to pick up the screws. Could this have damaged something?
I'm on O2 UK and have tried other O2 aims, but to no avail. I have also tried my sim in other phones and signal improves greatly. I noticed it instantly after reassembling the phone so whatever has changed, happened during the course of replacing the usb flex cable.
Any help would be greatly appreciated, thanks
Does anyone have any ideas on what could be causing the signal to be so consistently weak? Would it be worth replacing the wire antenna?
I have taken this apart and put it back together countless times, trying to see if there was a loose connection etc, but have had no luck so far. I even put a bit of folded tinfoil between the usb flex cable and the contact under the battery to try and help the connection. I've completely run out of ideas.
Rotoq said:
Does anyone have any ideas on what could be causing the signal to be so consistently weak? Would it be worth replacing the wire antenna?
Click to expand...
Click to collapse
I think you just disrupt the antenna. Sending it to a customer service repairs should be a good choice
Sent from my LT18i using xda premium
As I bought it from Ebay IE, I have no warranty, so will have to pay to have it repaired. i was hoping to have a go myself, however there doesn't seem to be an awful lot of information out there regarding this problem. I have found a replacement antenna for £3 so I might try that, however I'm not sure that is the problem as the antenna looks in good condition and was only disconnected briefly.
Edit: Oh and thanks for the reply
send it to service center...
rocky23 said:
send it to service center...
Click to expand...
Click to collapse
I'll probably have to take it to my local electronic repair shop as it is not under warranty. i was really hoping to avoid this as I'm not sure what they will charge :-/
Rotoq said:
I'll probably have to take it to my local electronic repair shop as it is not under warranty. i was really hoping to avoid this as I'm not sure what they will charge :-/
Click to expand...
Click to collapse
well thts ok too jus watch out as wat hes doing?good luck m8 an do pm or post as how ur phone bhaves an costed?for repair
I'm hopefully going to leave it to be repaired this weekend but if anyone has any ideas please feel free to post them here.
well there are apps jus c in market"signal boost"u get a whole lot of apps jus giv it a try....
rocky23 said:
well there are apps jus c in market"signal boost"u get a whole lot of apps jus giv it a try....
Click to expand...
Click to collapse
Thanks, but it wasn't an app that caused the change, so I am reluctant to use an app to try and work around a proper fix.
Having read awful reviews for my local repair shop, I have just purchased a replacement antenna to try and repair it myself. It cost £3.00 so I'll fit it as soon as it arrives. If that doesn't work I will HAVE to take it to be repaired :-(
Rotoq said:
Thanks, but it wasn't an app that caused the change, so I am reluctant to use an app to try and work around a proper fix.
Having read awful reviews for my local repair shop, I have just purchased a replacement antenna to try and repair it myself. It cost £3.00 so I'll fit it as soon as it arrives. If that doesn't work I will HAVE to take it to be repaired :-(
Click to expand...
Click to collapse
Same problem here... I've just replaced my usb flex and after that i wasn't able to connect to my provider h3g 3 ita in wcdma mode...but just have roaming with other gsm provider...
I've also a sound problem from loudspeaker otr better i don'have anymore sound from my s2.
I'm reading that antenna is in the same part of luodspeaker so i hope to have break my anttenna part...
I've just oredered a new loudspeaker part and mybe i've to ordere also wire antenna...
After that i really don't know what can i think.....
Regards
cescof said:
Same problem here... I've just replaced my usb flex and after that i wasn't able to connect to my provider h3g 3 ita in wcdma mode...but just have roaming with other gsm provider...
I've also a sound problem from loudspeaker otr better i don'have anymore sound from my s2.
I'm reading that antenna is in the same part of luodspeaker so i hope to have break my anttenna part...
I've just oredered a new loudspeaker part and mybe i've to ordere also wire antenna...
After that i really don't know what can i think.....
Regards
Click to expand...
Click to collapse
I had same problem as you.
After changing USB flex PCB my network signal just vanished.
Fortunately I found solution for my problem.
Problem was in slightly different PCBs and after unsoldering one SMD element my phone is back with strong signal.
Anyway here are the pictures:
imageshack.us/photo/my-images/33/pcbn.jpg
Original PCB is upper one
imageshack.us/photo/my-images/204/pcb2m.jpg
There is difference
imageshack.us/photo/my-images/831/pcb3h.jpg
Thank you!
This worked like a charm!!! Thank you so much for your post! Save me so much money.....
LittleCannon said:
I had same problem as you.
After changing USB flex PCB my network signal just vanished.
Fortunately I found solution for my problem.
Problem was in slightly different PCBs and after unsoldering one SMD element my phone is back with strong signal.
Anyway here are the pictures:
imageshack.us/photo/my-images/33/pcbn.jpg
Original PCB is upper one
imageshack.us/photo/my-images/204/pcb2m.jpg
There is difference
imageshack.us/photo/my-images/831/pcb3h.jpg
Click to expand...
Click to collapse
I have the same problem...
How did you remove the SMD?
Magnetic screwdriver
Just FYI, magnetic screwdrivers do not cause any damage to electronic circuits and are generally safe to use.
tixxix said:
I have the same problem...
How did you remove the SMD?
Click to expand...
Click to collapse
Soldering iron with really pointy tip
Top man.......
Usb port broke so replaced it and had a very weak signal. after hours of checking everything, flashing roms, taking phone apart, 3 different usb boards and a massive headache. I followed your guide and now have strong signal again. Was nearlly at a point where phone was going to be scrapped. Thankyou
LittleCannon said:
I had same problem as you.
After changing USB flex PCB my network signal just vanished.
Fortunately I found solution for my problem.
Problem was in slightly different PCBs and after unsoldering one SMD element my phone is back with strong signal.
Anyway here are the pictures:
imageshack.us/photo/my-images/33/pcbn.jpg
Original PCB is upper one
imageshack.us/photo/my-images/204/pcb2m.jpg
There is difference
imageshack.us/photo/my-images/831/pcb3h.jpg
Click to expand...
Click to collapse
LittleCannon said:
I had same problem as you.
After changing USB flex PCB my network signal just vanished.
Fortunately I found solution for my problem.
Problem was in slightly different PCBs and after unsoldering one SMD element my phone is back with strong signal.
Anyway here are the pictures:
imageshack.us/photo/my-images/33/pcbn.jpg
Original PCB is upper one
imageshack.us/photo/my-images/204/pcb2m.jpg
There is difference
imageshack.us/photo/my-images/831/pcb3h.jpg
Click to expand...
Click to collapse
You are a life saver! I was about to trash my S2. I got it used with usb and sound problems for about 130 euro. Swapped parts but had crappy signal. The signal was bad before to which I also bought new antenna. Network signal never worked properly since acquiring the phone 2 weeks ago. Swapping modems never helped.
I still have the old USB board and it looks like exactly like the one I replaced. Thinking of the same thing you just did. Now my question to you, why didn't you remove the other SMD to make the boards match? I might try removing both on the old to compare signal levels.
Your info should be stickied!
Thanks again!
Tried that Trick but now I dont have any more signal at all...nowhere!
Hi,
I had a problem with the micro-usb port/charger in my galaxy s2. It was what others have already described (constantly charging/not charging, voltage too high messages, etc). So I decided to buy a spare part for the charger, and replace it .
The first time I turned it on, The charger problem was completely solved, but I noticed the signal was gone. I realized I forgot to connect the antenna. So I opened it again and connected it. The antenna is a HF cable which connects to one end to the main board, and to the other end to the spare part I bought.
After reconnecting the cable I saw an improvement, but the signal is still much worse that before replacing it for the first time.
I bought the part here (German language):
[] IShallNotPostLinksAsANewUset []
Could it be this replacement part?? Might be a capacity adjustment problem? I don't know how are usuallry phone antennas designed. I don't know either if this part plays an important role for the antenna (it is anyway connected to the cable).
What can it be? What would you do to recover antenna sensitivity? (I do not have the broken part, it is already gone )
Best regards
duguet said:
Hi,
I had a problem with the micro-usb port/charger in my galaxy s2. It was what others have already described (constantly charging/not charging, voltage too high messages, etc). So I decided to buy a spare part for the charger, and replace it .
The first time I turned it on, The charger problem was completely solved, but I noticed the signal was gone. I realized I forgot to connect the antenna. So I opened it again and connected it. The antenna is a HF cable which connects to one end to the main board, and to the other end to the spare part I bought.
After reconnecting the cable I saw an improvement, but the signal is still much worse that before replacing it for the first time.
I bought the part here (German language):
[] IShallNotPostLinksAsANewUset []
Could it be this replacement part?? Might be a capacity adjustment problem? I don't know how are usuallry phone antennas designed. I don't know either if this part plays an important role for the antenna (it is anyway connected to the cable).
What can it be? What would you do to recover antenna sensitivity? (I do not have the broken part, it is already gone )
Best regards
Click to expand...
Click to collapse
Hi, after having had the same problems with charging, I also changed the micro-USB flex circuit/cable. I bought it in the UK from e-cell (on ebay) ... and same as you, I am not able to get 3G anymore, only G! Charging is solved, 3G is gone!
I do have the old part still ... will put it back on and see what happens.
UPDATE:
OK, I put the original part back in ... and 3G/H was immediately back. I can also see that the network strength is the same as with the replacement part (so it doesn't seem to be a defective antenna cable or so), but now it picks up UMTS and HSPA+, while the replacement part only caught GPRS. So what this means is that the replacement part is not the same as the original ... probably the same problem you have.
At the same time there was no miracle and the original part is still no charging unfortunately ...
I had ordered 2 other replacement parts in HongKong which should arrive in a couple of weeks ... will try those when they arrive, and hopefully at least one of them will solve the charging AND the 3G issue!
UPDATE 2:
While driving around with the phone with the replacement part, sometimes I do get E/3G/H+ signals, so it appears that the part is able to handle these ... but maybe only when the signal is very strong? Or maybe there are different types of E/3G/H+ signals?
Hi,
Experiencing the exact same behaviour, the signal is really bad (never above 3 bars). I'm going to open the phone tomorrow to make sure I left the antenna cable properly connected, but judging from what I'm seeing here, I believe the issue is with the small circuit with the USB port. I bought my part from e-cell as well....
Thank you very much for your answers guys. Now I know that my problem is not unusual. however in my case the 2g signal receptiony is also to degradated. Please keep us posted when you get the spare parts from Hong Kong. If they work I will also order 1 myself.
Sent from my GT-I9100 using Tapatalk 2
duguet said:
Thank you very much for your answers guys. Now I know that my problem is not unusual. however in my case the 2g signal receptiony is also to degradated. Please keep us posted when you get the spare parts from Hong Kong. If they work I will also order 1 myself.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
OK, good news ... today I got my second part, and this one seems to work just fine! 3G and H+ are back! And of course it charges.
As I ordered 2 different parts at the same time from HongKong, I am not 100% sure which one I got, but I am quite confident it is the one from mingxing200808. The item I bought is sold out now, but he relisted it (at higher price: 6.90 USD vs 3.90 USD that I paid, still worth it though). Note that the picture posted is not the same as the part shipped (which was newer, at least in my case). Also note that you need to reuse the rubber cover of the microphone (e-cell included that rubber piece). There is also no adhesive on the mingxing part, but as far as I can see you don't need that either.
Good luck!
Geronymous said:
OK, good news ... today I got my second part, and this one seems to work just fine! 3G and H+ are back! And of course it charges.
As I ordered 2 different parts at the same time from HongKong, I am not 100% sure which one I got, but I am quite confident it is the one from mingxing200808. The item I bought is sold out now, but he relisted it (at higher price: 6.90 USD vs 3.90 USD that I paid, still worth it though). Note that the picture posted is not the same as the part shipped (which was newer, at least in my case). Also note that you need to reuse the rubber cover of the microphone (e-cell included that rubber piece). There is also no adhesive on the mingxing part, but as far as I can see you don't need that either.
Good luck!
Click to expand...
Click to collapse
Hi Guys, I have had this problem also after replacing the usb board, it has been a nightmare thinking that other parts may have been water damaged I replaced the loudspeaker and inner chassis which both have antenna components. After reading your post I ordered a used part from gaproducts on ebay at £3.85 and my phone is now perfect. By the way the defective one was from china via ebay and supposed to be genuine. Wish I had seen this post a month ago it would have saved me so much hassle, but hopefully will help others.
This is strange, i have the same problem after changing the Flex Cable + Charging port. I bought it from ebay (user name yake-gandi3388) so be careful. I requested a refund or replacement but not sure what the answer will be. The phone never connects now to HSDPA (H), it always stays on EDGE (E). On top of that the signal is somehow weaker than before, not significantly, but I can notice it
I thought that the Flex Cable+Charging Port are not linked to Antenna performance in any way Can someone more experienced explain a bit?
Also, anyone tested an aftermarket flex cable+charging port that is working ok, including the antenna performance and full 3G connection?
Thanks!!!
Ive followed about 10 threads about changing usb boards.About 1 person was happy,and the other 9 got other problems.
When they put their "faulty" one back in,the "new" problems vanished.
Most were replacing the board because of usb problem.
I thought they were buying faulty replacements.For all I know someone at Samsung could be "recycling" faulty parts..
Sent from my GT-I9100 using xda premium
I'm experiencing the exact same problems!! What's weird is that with other carriers (that work in different frequencies) my phone works just fine... I'll try buying another flex cable and will tell you the results.
da_17 said:
I'm experiencing the exact same problems!! What's weird is that with other carriers (that work in different frequencies) my phone works just fine... I'll try buying another flex cable and will tell you the results.
Click to expand...
Click to collapse
Strange... I will try to check with other providers as well. On my side, I have re-contacted the Ebay member and he offered me an additional Flex Cable with no extra charge. Nice commercial initiative, however I am afraid that the next one will have the same issues Will keep you updated once it arrives.
Got this as well. I changed my USB board after it developed charging problems. The first one gave me a flashing battery icon & one of the screw holes didn't line up also. The next one fitted fine but I'm sure my signal is weaker. Compared to my friends S1 on the same network. He gets a stronger signal than me, stood in the same place. Replaced my loud speaker/antenna as I've also replaced the back chassis and think prising the speaker out might of damaged it. Think I'll try another USB board to see if it improves :S the 2nd board had the same Rev. number on it but looked slightly different to the original. (Sadly dont have the original to put back in to test)
Sent from my GT-I9100
I am signed up for a solution to this problem.
I had charging issues with the old port and replaced the board. The new board only allowed for an intermittent 1 signal bar. I put the original faulty board back in and had full signal immediately.
I ordered a second board and have the same issue. No/1 signal bar. Cannot make calls, it tells me "mobile network not available." I can connect to wi-fi with no issues though.
Unless a fix is found I am considering taking one of the new boards and my old board into a service shop and having the usb ports swapped.
Galaxy S2 SGH-i777 (AT&T)
I received a 3rd charging port board today, this one works some, but not as good as original. I'll post the number's printed on the board with there results in the phone.
Original Board: GT-i9100 REV2.2
R.B83 35
Original board worked great until it started having issues with charging/high voltage.
Replacement Board 1: GT-i9100 REV2.3
R.C42 10
This board would charge the phone and connect it to the computer, but would not connect to a network and would give no signal or a temporary 1 bar signal.
Replacement Board 2: R.B54
GT-i9100 REV2.2
This board would charge the phone and connect it to the computer, but would not connect to a network and would give no signal or a temporary 1 bar signal.
Replacement Board 3: GT-i9100 REV2.2
R.B83 36
This board both charges and connects the phone to the computer and it allows for a network signal. The network signal is not quite as good as my stock, but I think it will do.
I do not know what the board numbers mean, but I would guess the REV2.3 is an updated version of the REV 2.2. I think the compatability issue may come in the R._ numbers as Replacement Board 3 is the only one that works and is the closest R._ match. Maybe someone with far more expertise can shed some light on it, but this is my experience.
Geronymous said:
OK, good news ... today I got my second part, and this one seems to work just fine! 3G and H+ are back! And of course it charges.
As I ordered 2 different parts at the same time from HongKong, I am not 100% sure which one I got, but I am quite confident it is the one from mingxing200808. The item I bought is sold out now, but he relisted it (at higher price: 6.90 USD vs 3.90 USD that I paid, still worth it though). Note that the picture posted is not the same as the part shipped (which was newer, at least in my case). Also note that you need to reuse the rubber cover of the microphone (e-cell included that rubber piece). There is also no adhesive on the mingxing part, but as far as I can see you don't need that either.
Good luck!
Click to expand...
Click to collapse
viva! the party from Hong Kong worked for me. For everyone which needs this part search for
the vendor on google. I am using my phone for the 2100Mhz 3 g band.
Cheers!
Sent from my GT-I9100 using Tapatalk 2
Good.
So whats the vendors name....or is it classified.
Sent from my GT-N7000 using xda premium
I changed my usb port as well due to not charging/over voltage, ordered it from hongkong via ebay.
Been using the new one for over 6 months now and i would be lying if i said i had any 3G problems. And someone already asked this in this thread but no one has answered it. How are usb charging port and 3G signal linked??
Sent from my CyanogenMod 10 powered GT-I9100 using xda premium
krayndr said:
I changed my usb port as well due to not charging/over voltage, ordered it from hongkong via ebay.
Been using the new one for over 6 months now and i would be lying if i said i had any 3G problems. And someone already asked this in this thread but no one has answered it. How are usb charging port and 3G signal linked??
Sent from my CyanogenMod 10 powered GT-I9100 using xda premium
Click to expand...
Click to collapse
The USB board has the contacts to connect to the antenna in the back of the chassis. So replacing it with a sub standard part is affecting signals
Sent from my GT-I9100
duguet said:
viva! the party from Hong Kong worked for me. For everyone which needs this part search for
the vendor on google. I am using my phone for the 2100Mhz 3 g band.
Cheers!
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
Please let us know the vendor name on Ebay. As mentioned in my previous post, the vendor (user name yake-gandi3388) agreed to change my replacement with no extra charges. I installed the new piece...the signal is a bit better than previous one...but still lower than the original.
Can anyone advise a vendor that sells replacement part Flex Cable with a strong signal?
Blue Angel o.O said:
Please let us know the vendor name on Ebay. As mentioned in my previous post, the vendor (user name yake-gandi3388) agreed to change my replacement with no extra charges. I installed the new piece...the signal is a bit better than previous one...but still lower than the original.
Can anyone advise a vendor that sells replacement part Flex Cable with a strong signal?
Click to expand...
Click to collapse
I an sorry for for the delay. I live in Germany and I use O2 ( umts frequency in the 2100 Mhz band) . I ordered the part from Hong Kong which Geronymous cited, didn't want to make specific advertising. The user is mingxing200808.
Regarding the question why does this affect the antenna, it is because antennas need to have a certain capacitive load in order to be adjusted and to transmit in a certain frequency range. If the antenna is not adjusted the signal will be reflected back . This capacitance is defined by the geometry of the antenna and might be changed/adjusted by elements connected to the end of the antenna. So the flex part acts as an adjusted capacity load for the antenna.
This is a very rough description, but I hopeit helps.
Greetings,
Sent from my GT-I9100 using Tapatalk 2
Finally got my 3rd USB board and my signal has improved a lot! Hurrah! Got from tjuk1980 on eBay. This board is a darker blue, looks a lot better than my second board which was a lighter greener colour, the logo and writing didn't seem as clear as it does on the new one. Getting 3 of 4 bars on H+ at home where as before it would stay on G and if it did pick up 3G/H by chance it wouldn't show any bars.
Sent from my GT-I9100
Edit: picture of the dodgy board - this gave me crap service so avoid that one!
Hi there.
I have a G5 as my backup phone. Recently, I've replaced the fingerprint scanner (it stopped working as a button, no cleaning would help, so I've bought new part online and replaced it), and after that I have no signal (-1dbm 99asu). Not even an alarm call is possible.
From my research, the antenna module is the bottom slice of the phone, you attach the battery to (one with mic, USB-C and bottom speaker)? I have both original bottom part and a Cam+, no signal on either of them. Where else should I look for any damage, that would lead to my problem - no signal at all?
I have a similar problem. The signal is very low everywhere, I tried to clean all the contacts between the bottom part and the phone, and nothing changed.
Me too i have a problem with the signal since display change. How can i get it fix. The phone has very low signal and it has network only on 3g on LTE it hasnt any network and 2g signal doesnt have.
Изпратено от моят LG-H850 с помощта на Tapatalk
Well, the pcb or mainboard has a small flex type antena on the back of it, it's black and has some lettering on it and it connects using coaxial type push connectors, also the phone connects to the aluminum case via some exposed pins on the mainboard, the case acts as an antenna also, if you need pictures I can take some tomorrow, I work in a cellphone shop and I fix an LG g5 almost every day, we have some main boards laying around, you most likely bent one of the pins that connects to the case
nah i got the same problem here after disassemble the phone. I already clean all things that contacted with the backdoor or with mainboard but the problem still there. Only got 0-1 bar of 4g even it near the tower until it change to 3g with the same condition. but the 2g signal is always full bar.
Jc_master said:
Well, the pcb or mainboard has a small flex type antena on the back of it, it's black and has some lettering on it and it connects using coaxial type push connectors, also the phone connects to the aluminum case via some exposed pins on the mainboard, the case acts as an antenna also, if you need pictures I can take some tomorrow, I work in a cellphone shop and I fix an LG g5 almost every day, we have some main boards laying around, you most likely bent one of the pins that connects to the case
Click to expand...
Click to collapse
so is it located on the mainboard or part of screen? could you take some picture of it :crying:
Jc_master said:
Well, the pcb or mainboard has a small flex type antena on the back of it, it's black and has some lettering on it and it connects using coaxial type push connectors, also the phone connects to the aluminum case via some exposed pins on the mainboard, the case acts as an antenna also, if you need pictures I can take some tomorrow, I work in a cellphone shop and I fix an LG g5 almost every day, we have some main boards laying around, you most likely bent one of the pins that connects to the case
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maybe post foto where is gsm ahtenna?