[Q] I have some hardware questions about the L9 - LG Optimus L9 P760, P765, P768, P769

Hi All,
I have a L9 with possible hardware issue where the camera, camcorder, bluetooth do not work. I have tried many solutions but nothing has fixed it. I bought the phone in this condition. I managed to drop it today and crack the screen to add more salt to the wounds lol
My first question: I am thinking about buying a phone with a bad IMEI and swapping its main board with mine. Is the radio removable from the main board?
Second question: Is the IMEI number associated with only the radio chip / logic board, or the main board? Or both?
Thank you for your help

Related

[Q] Charging Flex Cable Problem

Hi, I have the Galaxy Note i717 and had to replace my charging port as it had stopped charging reliably. I bought one of the many on ebay for around 8 bucks. I proceeded to put it in when I received it but to my dismay I no longer could get service at all, just wifi. So just to verify it was nothing I broke I put the old pcb back in and service returned. At that time I believed it was just a defective unit, so second try at it same thing no service old one works fine. Is this a problem anyone has ran into before? Any help I would appreciate.
jpeeler said:
Hi, I have the Galaxy Note i717 and had to replace my charging port as it had stopped charging reliably. I bought one of the many on ebay for around 8 bucks. I proceeded to put it in when I received it but to my dismay I no longer could get service at all, just wifi. So just to verify it was nothing I broke I put the old pcb back in and service returned. At that time I believed it was just a defective unit, so second try at it same thing no service old one works fine. Is this a problem anyone has ran into before? Any help I would appreciate.
Click to expand...
Click to collapse
It is quite possible that either your new port is the wrong part, or is damaged.
The port wiring is different between models ...I.E. SGH-I717, N7000, and other note models.
Even the charge cables are different part numbers between models, but visually look identical.
It just sounds like the port wiring is different to me ..
I suggest getting the port directly from samsung...even though it will cost a bit more.
At least then you have a fall back if the port won't function.
Or perhaps have the port repaired by Samsung directly ....
I'm sorry I can't offer more help .g
gregsarg said:
It is quite possible that either your new port is the wrong part, or is damaged.
The port wiring is different between models ...I.E. SGH-I717, N7000, and other note models.
Even the charge cables are different part numbers between models, but visually look identical.
It just sounds like the port wiring is different to me ..
I suggest getting the port directly from samsung...even though it will cost a bit more.
At least then you have a fall back if the port won't function.
Or perhaps have the port repaired by Samsung directly ....
I'm sorry I can't offer more help .g
Click to expand...
Click to collapse
Well both pcb boards that they sent me have the same markings as the one I removed. They also say on them SGH_I717_SUB_REV1.0_1107
So I do believe it to be the correct part. Just to clarify the new boards do charge the phone just cellular service stops. Maybe by some crazy luck I got two faulty boards. I wasn't sure they were going to send me a replacement so I ordered from another company as well so I guess I will have to see if that one works,
Interesting ....
The part seems okay ...
And the odds of two bad ports in a row is remote at best ....
Some time ago I saw a thread about an extra wire that traveled down from the antenna to the charging port....
And users were reporting that this very small wire was being damaged or missed when the port was serviced.
I've never seen this wire or connection ......but I figured I'd bring it up ..
Try a general search on the topic ...and see if it yields a result.....
I just remember it being a big deal ....g
Just wanted to update the post in case this happens to anyone else. After getting the free replacement for the first part I believed to be defective I also ordered from another company as it took more than a month for my replacement, so I believed them to had stood me up. Well the one from the other company arrived today, and worked. Maybe the others were for different networks or something. I don't know if that is possible Rogers vs ATT frequencies and what not but it worked and all is well.
jpeeler said:
Just wanted to update the post in case this happens to anyone else. After getting the free replacement for the first part I believed to be defective I also ordered from another company as it took more than a month for my replacement, so I believed them to had stood me up. Well the one from the other company arrived today, and worked. Maybe the others were for different networks or something. I don't know if that is possible Rogers vs ATT frequencies and what not but it worked and all is well.
Click to expand...
Click to collapse
I am having issues as well...
My phone has a Rev1.0_1107 part, and I cannot charge unless I play with the cable, so i decided to replace this port.
1st was from China (ebay) and received no signal, only wifi. Rev1.0_1107
2nd was a replacement from the same company, same issue. Rev1.0_1107
3rd was from a place in CA (ebay) and is Rev2.0_1206 and same issues.
I can put my original part in there, and I get signal just fine... anybody have any ideas on this matter? It's frustrating to have to keep battery swapping and would like to get this fixed.
MisterLas said:
I am having issues as well...
My phone has a Rev1.0_1107 part, and I cannot charge unless I play with the cable, so i decided to replace this port.
1st was from China (ebay) and received no signal, only wifi. Rev1.0_1107
2nd was a replacement from the same company, same issue. Rev1.0_1107
3rd was from a place in CA (ebay) and is Rev2.0_1206 and same issues.
I can put my original part in there, and I get signal just fine... anybody have any ideas on this matter? It's frustrating to have to keep battery swapping and would like to get this fixed.
Click to expand...
Click to collapse
The one that finally worked for me was from ebay company (no.1-tech) also china but has been operating flawlessly for sometime now.
jpeeler said:
The one that finally worked for me was from ebay company (no.1-tech) also china but has been operating flawlessly for sometime now.
Click to expand...
Click to collapse
Noted... thanks. I have searched them out and they only appear to have the cable for the N7000. Can anyone else recommend a place to buy these from?
Just noticed that when it's near my window, I get 1 bar of service... So it's like my signal strength is uber weak. I have a microcell in my home, and it is functioning properly (other ATT phones are connecting just fine) and works again as soon I put the original cable back.
Hi,I have a samsung Note N7000.
I'm have a similar issue,start with high power charging issue every 5seconds.I bought a replacement from ebay company in New Jerse it fixed that problem.but it created a problem when I make a call the other end can not hear me.I email the company and they sent #2 replacement.after
the charging port board was installed now I dont have any signal for service.the pcb# N7000/i9220_sub_Rev1.0.
I'm going try different company.what should I be looking for?I'm wasting too much time on this.
johnson1828 said:
Hi,I have a samsung Note N7000.
I'm have a similar issue,start with high power charging issue every 5seconds.I bought a replacement from ebay company in New Jerse it fixed that problem.but it created a problem when I make a call the other end can not hear me.I email the company and they sent #2 replacement.after
the charging port board was installed now I dont have any signal for service.the pcb# N7000/i9220_sub_Rev1.0.
I'm going try different company.what should I be looking for?I'm wasting too much time on this.
Click to expand...
Click to collapse
Having exact the same problem.. just a moment ago I tried the third board and still hacing exact same problem, no signal or one bar only when I have one bar I can make a call but the other end can not hear me
gregsarg said:
Interesting ....
The part seems okay ...
And the odds of two bad ports in a row is remote at best ....
Some time ago I saw a thread about an extra wire that traveled down from the antenna to the charging port....
And users were reporting that this very small wire was being damaged or missed when the port was serviced.
I've never seen this wire or connection ......but I figured I'd bring it up ..
Try a general search on the topic ...and see if it yields a result.....
I just remember it being a big deal ....g
Click to expand...
Click to collapse
Sorry to bring up an old thread but I wanted to bring this to others attention. What Gregsarg said about a white wire running down from the antenna is correct, or at least it is on an i717. It runs down from the right hand side of the board, behind where the flex board connects and onto the little round connector on the flex board, it's probably that that's been missed off of some phones as would be noticed by only getting 1 bar of signal! I've also noticed that the UK version of the note only has 4 brass connectors on the flex board 2 for the antenna and 2 for the speaker whereas the i717 has 5, 3 for the antenna and 2 for the speaker. I'm not sure what the difference is between a white or black i717 to be honest, i'd have thought it would only be the outer casing that had changed, I can't see them changing parts too, that just sounds stupid!
Anyway, the reason I'm posting is not just because of the above, it's because i'm in the middle of fixing an i717 for someone and was searching to see if a N7000 part would fit and although it looks as though it would I'm not willing to test that theory! I will say though that the missing brass connector is also connected to brass connector 2 on the Ariel/speaker module but on the flex board that connector also has a resistor above it which would likely cause an issue!
The part that i'm ordering is from a company in the UK but is a Rev 2.0 board and not the rev 1.0 that is in it already so i'm hoping that's not an issue else i'm gonna have to buy from China which is cheaper but will likely take an age to get here and the customer wants it done ASAP so what they want they get! I will update this thread once i've fitted the part and got it running along with a link to where I got it from.
h4x0rm1k3 said:
Sorry to bring up an old thread but I wanted to bring this to others attention. What Gregsarg said about a white wire running down from the antenna is correct, or at least it is on an i717. It runs down from the right hand side of the board, behind where the flex board connects and onto the little round connector on the flex board, it's probably that that's been missed off of some phones as would be noticed by only getting 1 bar of signal! I've also noticed that the UK version of the note only has 4 brass connectors on the flex board 2 for the antenna and 2 for the speaker whereas the i717 has 5, 3 for the antenna and 2 for the speaker. I'm not sure what the difference is between a white or black i717 to be honest, i'd have thought it would only be the outer casing that had changed, I can't see them changing parts too, that just sounds stupid!
Anyway, the reason I'm posting is not just because of the above, it's because i'm in the middle of fixing an i717 for someone and was searching to see if a N7000 part would fit and although it looks as though it would I'm not willing to test that theory! I will say though that the missing brass connector is also connected to brass connector 2 on the Ariel/speaker module but on the flex board that connector also has a resistor above it which would likely cause an issue!
The part that i'm ordering is from a company in the UK but is a Rev 2.0 board and not the rev 1.0 that is in it already so i'm hoping that's not an issue else i'm gonna have to buy from China which is cheaper but will likely take an age to get here and the customer wants it done ASAP so what they want they get! I will update this thread once i've fitted the part and got it running along with a link to where I got it from.
Click to expand...
Click to collapse
When getting the part, Revision usually does matter. Also the serial number under the revision number (Usually starting with DRC or DRG) can also matter. Getting the identical one is usually the best bet (albeit not the easiest considering people on ebay use stock images and don't show you the ACTUAL part you're getting.)
KaboodleMoon said:
When getting the part, Revision usually does matter. Also the serial number under the revision number (Usually starting with DRC or DRG) can also matter. Getting the identical one is usually the best bet (albeit not the easiest considering people on ebay use stock images and don't show you the ACTUAL part you're getting.)
Click to expand...
Click to collapse
I got the new part this morning, it was a REV 2.0 board and after putting it all back together including the white/grey ariel wire I can report that it's working perfectly, as good a signal as it had before and is now charging properly. The link to the UK based seller is here for anyone interested that needs a replacement in the UK - http://www.ebay.co.uk/itm/300819833823?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 The part is £19.99 with no P&P and arrived in 1 day. Just in case the link doesn't work then the name of the supplier is gravedigga1.
EDIT:- I heard back from my customer today who has reported having problems with wifi, signal and loudspeaker! Therefore the Rev 2.0 part won't act as a decent replacement for the Rev 1.0 unfortunately. I wasn't able to fully test as the customer didn't leave his sim card in and he uses 1 of those weird networks which I don't have a sim for. I have managed to source another UK supplier on ebay for an even cheaper price of £12 and they verified that it is a Rev 1.0 board they have in stock and have put 1 aside for me. Once I know that one works for definite i'll report back again just to update the thread but this time the customer is bringing the phone when the new part is here so it can be tested fully before it goes back to him!
I just find it strange that even though the Rev 2.0 is exactly the same in every way as the Rev 1.0 board that it has these issues although i've not heard of the loudspeaker problem before so I think there's a fault with it anyway.
Yeah these notes are getting really dodgy in their old age. We've decided to basically not fix abutting except the screens anymore because getting the right parts is a nightmare.
Sent from my DROID BIONIC using xda app-developers app
This may be a little off key here and if I'm in the wrong thread I apologize but...
I have the i717, bought the charging port off of eBay and replaced it. After plugging in the phone the touch keys at the bottom lit up like I was in business. After allowing the phone to "charge" for about 2 hours, the touch keys were the only thing to work and light up on the phone. I could press the lock key on the side and the touch keys would come off and on like it was on the lock screen but the screen was black. Has anyone encountered this before? If so, please help!
Thank you
Btw, it seemed like the phone was charged/charging bc those touch keys were on...
samsung sgh-i717 usb port
Well I have tried three different suppliers and I have not found a board that works correctly . Some boards that network strength is weak , some boards the microphone doesn't work , some boards that speaker won't play . I have reinstalled my original board back in my phone and every time it returns back to working properly. I just need the USB /charge port to work . Please if you have any ideas let me know ib6469 @ yahoo . com . Thank you very much for or help
Pease Help..i717..charge port
Hello ,
My name is Russ and I have a Samsung Galaxy Note SGH-i717 ( AT&T ) which I love . About two months ago the charge port quit working , so I ordered one from Ebay ( Flex cable , Mic/USB board ) , installed it and my signal was weak after installing it so I reinstalled the original board and it went back to full power . I thought it was a bad board , so they sent me another , I installed board #2 and the speaker on the back had no sound , put my board back in and the speaker went back working . So I had the supplier send me another board #3 . I got it installed , and the Mic wouldn't pick up , I put my board back in everything goes back to normal . So I thought it might be the supplier , so I tried a different supplier , same thing . In total I have tried three different suppliers and I lost count on how many boards I have installed .. Every time I can reinstall the original board and it will stop whatever it's doing wrong . My board Number is SGH_I717_SUB_REV1.0_1107 , DRBL12IN BF , 69 . I am at a lost , I don't know if there's something I'm doing wrong . Thank You for your time ib6469 ( Russ )
same issu
Please let me know if anyone has had any luck finding a board that works... i am in the exact same boat... email me at bnanda0827 at yahoo.com
ib6469 said:
Well I have tried three different suppliers and I have not found a board that works correctly . Some boards that network strength is weak , some boards the microphone doesn't work , some boards that speaker won't play . I have reinstalled my original board back in my phone and every time it returns back to working properly. I just need the USB /charge port to work . Please if you have any ideas let me know ib6469 @ yahoo . com . Thank you very much for or help
Click to expand...
Click to collapse
note charching port
hi
i purchase this part from 6 different company but same problem no signal charging port works ok.
any boby have solution please let me know.its very annoing.
joe
zia_uddin said:
hi
i purchase this part from 6 different company but same problem no signal charging port works ok.
any boby have solution please let me know.its very annoing.
joe
Click to expand...
Click to collapse
So it looks like basically fixing the charge port on a galaxy note just isn't going to hapen if you want service. Nobody has found a solution?

[Q] Suggestions about HW repair options

I've had 3 hardware problems develop all at the same time:
The charging port has stopped reliably working
The headset jack is beginning to fail
The dreaded "No SIM Detected"
I know that the first two are relatively easy repairs if you can solder.
The third is a bit more of an issue. Reading here and in other places it sounds like it *might* be a bad SIM card reader (or a bad connection). Others have suggested that it could be a motherboard issue (not sure if that's the correct term for a phone).
Either way, the phone needs repairs and they seem way above my current paygrade/project time. Unfortunately my Note is out of warranty.
So, my bright friends, any suggestions on who to turn to? If I contact Samsung, how much might I be looking at for the repair? I'm primary interested in solving the SIM card reader thing first as I'd still like to use this unit as a phone.
Matt Bernius said:
I've had 3 hardware problems develop all at the same time:
The charging port has stopped reliably working
The headset jack is beginning to fail
The dreaded "No SIM Detected"
I know that the first two are relatively easy repairs if you can solder.
The third is a bit more of an issue. Reading here and in other places it sounds like it *might* be a bad SIM card reader (or a bad connection). Others have suggested that it could be a motherboard issue (not sure if that's the correct term for a phone).
Either way, the phone needs repairs and they seem way above my current paygrade/project time. Unfortunately my Note is out of warranty.
So, my bright friends, any suggestions on who to turn to? If I contact Samsung, how much might I be looking at for the repair? I'm primary interested in solving the SIM card reader thing first as I'd still like to use this unit as a phone.
Click to expand...
Click to collapse
I just found this thread Matt... http://forum.xda-developers.com/showthread.php?t=2105966

[Q] Weak GPS signal : hardware fix ?

Hello there,
I'm facing some troubles using my GPS (i9100P). I think it's a hardware issue since I already tested different kernels / ROM and tried multiple GPS tools without big changes. I just successfully improved the quickness of the fix.
For now, fix is just awesome : 10 satellites fixed in 3-4s. The issue is related to the weakness of the signal. It can be lost when driving near a truck, a bridge or small buildings. Using "GPS test" software outdoor in a clear view, SNR is about 25-30 for the best satellites. I think it's weak !
Do you think it's a hardware issue (probably my GPS module ending its life) ? Which part should I change ? I think it's the module including speaker but I'm not sure :
http://i01.i.aliimg.com/img/pb/148/330/446/446330148_718.jpg
Hope someone can help me to fix that issue ! Thanks
Lwysiwyg said:
Hello there,
I'm facing some troubles using my GPS (i9100P). I think it's a hardware issue since I already tested different kernels / ROM and tried multiple GPS tools without big changes. I just successfully improved the quickness of the fix.
For now, fix is just awesome : 10 satellites fixed in 3-4s. The issue is related to the weakness of the signal. It can be lost when driving near a truck, a bridge or small buildings. Using "GPS test" software outdoor in a clear view, SNR is about 25-30 for the best satellites. I think it's weak !
Do you think it's a hardware issue (probably my GPS module ending its life) ? Which part should I change ? I think it's the module including speaker but I'm not sure :
http://i01.i.aliimg.com/img/pb/148/330/446/446330148_718.jpg
Hope someone can help me to fix that issue ! Thanks
Click to expand...
Click to collapse
chk on stock rom or else it is a n hardware issue
bhavstech said:
chk on stock rom or else it is a n hardware issue
Click to expand...
Click to collapse
Clean install made using Odin : repartition / full wipe, XXKI3/XXLPX install, but same issue with GPS. I really think it's a hardware issue.
Lwysiwyg said:
Clean install made using Odin : repartition / full wipe, XXKI3/XXLPX install, but same issue with GPS. I really think it's a hardware issue.
Click to expand...
Click to collapse
show in service centre
bhavstech said:
show in service centre
Click to expand...
Click to collapse
I don't have service center near home / work :-s.
If my S2 needs to be repaired, I will probably do it myself. That's why I need to know what part to change. Since phone's value is near 100€, I don't want to repair it if that costs more than 20-30€.
Anyone knows which part of the phone integrate GPS module ?
You need the service manuals; they've been posted here from time to time - do an XDA search (or a Google search with XDA appended to your search terms), or a Google search should find them easily enough on other sites.
You could also take it to any local mobile repair shop, it doesn't have to be a Samsung service centre who does the repair.
Got it ! Thanks
I learned that speaker part integrates antenna, and GPS receiver is fixed on motherboard ! It seems to be hard to change GPS receiver without equipment (and experience !).
Will check if speaker part seems good (removing / cleaning it), then checking / cleaning GPS receiver part. Hope this will solve my issue.
I found a local mobile repair shop near my home. I asked it how much it will cost... waiting for the answer
Yeah it can be tricky to replace parts like that if you don't have experience. Good luck, let us know how you get on in this thread.
MistahBungle said:
Yeah it can be tricky to replace parts like that if you don't have experience. Good luck, let us know how you get on in this thread.
Click to expand...
Click to collapse
This week-end, I cleaned my i9100p hardware but nothing changed ! I noticed that without HP/antenna part, I can't fix GSM nor GPS signal. This part seems to be the heart of the signal reception. I plan to change it as soon as possible. This morning, I ordered HP/antenna part :
http://www.htcn.fr/pieces-detachees...ut-parleur-dock-galaxy-s2-i9100-sonnerie.html
I don't know if this will solve my issue, but I really hope for it !
Someone in a french forum explained me a way to improve GPS signal. This seems to be really easy to do. I will try it tonight and test it tomorrow
http://galaxys-team.fr/viewtopic.php?f=50&t=41110&p=634046#p634044
More news tomorrow !
Keep posting your progress, this thread is going to be a really useful reference for people in future once you've fixed it
I have tested the hardware fix linked in my previous post. Unfortunately, that doesn't solve my issue. Maybe because it's a i9100P (NFC version), with a special battery cover. Moreover, I made this fix quickly. Will try again later.
I'm now waiting for my new HP/antenna part, that will probably be received this week-end !
Edit : HP/antenna part has been sent by HTCN. I will received part thurday or friday. More news soon
HP/antenna part changed. Unfortunately, issue not solved
For now, I don't know what to do... It seems that the guilty is the GPS receiver (fixed on motherboard), but it's a bit hard to change. I will check again /root/etc/gps, sirfgps.conf and gps.conf, but I'm not optimist ! Phone only costs about 100€ here : ask a center to repair it is not a good idea, in my opinion.
If anyone has an idea, please post here ! It seems that I have to buy a S3 4G soon :-s
Yeah unfortunately replacing individual components on the board is really really difficult to do unless you absolutely know what you're doing - a fiddly job, very easy to damage the board itself or other components beyond repair if you mess up. And you'd have to source a 2nd hand board to get the components to replace anyway, so you might as well just swap the whole board. Samsung service centres don't replace individual components on the board because it's easier for them to just swap the whole board and they charge a lot for labour.
If you want to keep the phone, replace the whole motherboard; source a 2nd hand one online, and either swap yourself or pay a local mobile repair shop (not Samsung service centre) to swap. But you could also buy a fairly good phone for not much more than that (or even the same amount if you bought a 2nd hand phone).
So given what you've already tried (and you have tried everything), I'd probably be looking at a new phone if I was in your situation.

[Q] Mijue T100 Microphone Problem

Hello.
I have recently bought a MIJUE T100 for my mums present.
After a week of usage or maybe not even that, a microphone stopped working. I have asked loads of local repair shops about fixing it. All of them lack in parts for this phone.
Where can I find parts for this phone. Can anyone advice me please what to do with that matter.
Thank You
Regards
rogupl

Gps Antenna Serial

Hi everyone. Hoping to post in the right section.
Anyway, I'm going to send back my OnePlus 3 to get my GPS antenna repaired (and maybe to get a new battery as well).
I can't open my Op3 (unscrew, remove the display, ecc) as, I guess, I'd void the warranty.
So, is there a software way to get the serial number or any identification number of GPS antenna and, maybe, battery?
I just want to be 100% sure that the GPS antenna will be changed (and fixed I hope), and that my Op3 won't get just a clean flash or so.
I've already tried 6 or 7 common apps that show hardware info, but no luck.

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