Hi
If anyone know, the emmc pinouts for LG G Flex 2 on the PCB, share pls!
Or anyone, with bad, damaged motherboard, can desolder emmc, and find pinouts with multimeter?
Thanks!
reserved
I write hear because maybe somebody will be need that.
Lats time i get to repair Lg G Flex 2 (H955) it was one time working one time not (singing of deth-no reaction).
By disconnecting of battery pluging the charging cable and making shortage on one pin (round one) neared abowe batery socket with - (the plate securing emmc and other stuffs) the phone become alive (sometimes still didnt give and sign of life or was totaly no detection of the phone by pc).
My Laptop sometimes detect him like normal device sometimes like quallcom 9008 device (the most time quallcom) i was in mining that is software problem (form one side will but someting for me was not right).
Also my motherboard was kind of damage from down side of mainboard are 2 capiticors wicht some kind of chip with 4 legs (i dont know the name of it) but is placen on downstairs from left side (i replaced it with other one). After that phone give more singing of life.
I was looking still (because of strange behaviour of phone and switching off).
I get idea to look for emmc of the phone i clean the black stuff aroud that and i give some flux so i make rehot of that chip in temperature of 320 degrees of C with hot air station.
After that i make the phone in one peace and gess what the phone become alive (no porblems with and the client didnt loos the data from the phone) also was some problems to get the phone alive because of not charged battery (so before that all solution please make sure that your battery is 100% ok beacuse sometimes the battery looks ok and is charging but happen that is still damaged).
Also before please check the usb charging socket (and replace it if its damaged) beacuse also the system of phone also switch off the data ways of the usb because of shortages in socket (when the phone is ok and you make it alive and still usb data connection didnt work with your pc use repair app from the store for your android system version) after that everything must work ok.
So in my situation all the phone is working correctly.
Greetz for all.
Related
Hello Freinds,
I dont know whats going wrong, but whenever i connect my wizard with usb it emits electric current, i checked the usb with other phone and everything is fine.
Seems like some problem with my wizard.
Anybody know wats wrong??
Probably non Wizard Cable
I have the same issue.
I'm not using a wizard cradle but a mere Motorola V3 cable.
It seems now the MiniUSB is a standard around now.
But it seems the MiniUSB cradle that is coming with the wizard or same cables do not have this issue.
Aldo
Same here, i'm not able to have a call while i have the phone connected with USB or charging. I don't know why but it gives shocks...
Hmm...
About the calls but was active sync connected when you couldn't get a call
please give us the radio ROMnumber and OS also
Aldo
Ive had that problem also and i dunno about anyone else but i simply took out the power cord and plugged it in again but facing the other way (im guessing u have a simple 2 prong cord without that middle round prong like i do). Im think it is something to do with the positive and negative thingy (yes i know practically nothing about electronics i dont need to be flamed for it) simple but it worked for me give it a try and tell ur results
Actually thats not the problem only with usb but also charger, today i tested with charger and then also the i get the shock. I think theres some problem in the phone usb connector.
Well tommorow i will give it to service centre. Lets see...
shock
Well this is a problem that I had too- especially if I touched the damn phone barefoot.
The issue seems to be related to proper earthing (grounding) of the electricity supply.
@samy 3660- This is especially true in India since the US or European connectors do not have the earth pin for Indian sockets
The problem goes away if you put in proper earth terminal (for charger) or ground the PC case properly.
I had the same problem with my laptop at camp in Croatia, whenever I connected power supply I got shock from any metal part of my notebook. in other countries later it was ok, next year at same camp same problem so there could be problem with your electricity, sorry my english
Hi friends
I am having an handset(Tilt) with flex cable problem, but wondering if flex cable can solve my phones problem where it is doing the following:
-Not accepting the SIM.
-phone is getting hanged any times, speed is also very pathetic.
-keypad is pressed on its own.
-Phone is not accepting any charger but charging with PC USB.
These are some of the major problems, I wish if someone could help me out in knowing what work does a flex cable plays, coz the technician is charging so much to change the flex cable & giving me no assurance as to what problems will be solved. I would like to know from some of those technicians here who knows something about hardware. Mike I am talking about you specially.
I would like to write this in our XDA encyclopedia given the case I get proper knowledge about it.
Looking forward to answers.
This is quite difficult to answer without testing. The SIM not being recognised will in itself slow down the phone or even create a full blown crash.
It's not stated what flex cable we are talking about. Flex Cables are just multi wire connections between circuit boards. Phones often have 3, 4 or more flex cables. For example between the the physical keypad and the motherboard or the d-pad and the LCD screen or between screen and motherboard etc etc.
It IS possible a flex cable can get damaged. This normally happens in phones with a slide out keyboard where the flex-cable has to roll back and forth as the keyboard slides in and out. However, such a cable would not I think change the charging behaviour of the phone.
It charges on PC connection but not charger connection. To me that normally indicates a USB port connection problem - bent pin in the slot, possibly even crossed pins or a cracked or dry solder joint between the usb port and the motherboard.
Another thing to consider is whether all the battery contacts are making good contact with the phone. Here again the multiple connections between battery and motherboard can become dry or cracked leading to erratic or underpowered connections.
The keypad being pressed on it's own can again be caused by different things:
1
It could be a faulty or loosley connected flex cable
2
Pressure being put on the digitizer screen by something under the bezel or just a damaged digitizer layer
3
A key that is not releasing from the keyboard properly (is it always the same key or group of keys?)
4
Moisture at many different places inside the phone, including keyboard, d-pad etc. Even when dried out, the residue or oxidisation can continue to cause problems.
So, I would not rule out a flex-cable problem, but it might not be the only fault. Unfortunately then, the technician you spoke to may be correct and it is not possible to guarantee it will solve all problems. Having said that, I would want to say to the technician that I am not going to pay for a new flex if it does not solve any of the problems.
This is where it becomes difficult to decide whether to go for paid for repair or to attempt the job yourself.
Mike
hi guys i have a HTC one x at &t and as usual i connected my phone to the charger and the phone restarted and it didnt charge after wards ! and then i realised that my charger was burnt it also gave a fried smell ! and now my phone wont charge or conect to usb ! i think this is a hardware issue ! do u guys have any ideas to help me ! i would like to know if there are any jumpers or fuses in the charging ways ! please help me with this
and there was no over load current it was normal 220 V AC when i pluged the charger !
im sure about it
:crying::crying:
thank you
I had the same thing happen on my old htc windows phone. That one had a removable battery i could pull out and charge. I'm pretty sure there's a tiny in line fuse on the usb port that has blown. If you're into micro soldering you could try replacing it. Otherwise the only option is pulling it apart and replacing the board with the usb port on it (most likely the motherboard). These tend to cost almost as much as a new phone, so unless you can get a second hand one from someone with a busted screen (or similar) i reckon you're out of luck.
Ps - there's no guarantee that some components on the board aren't damaged beyond the fuse, so motherboard replacement would be the best option.
Sent from my Nexus 7 using Tapatalk
When looking into the USB port I noticed there is a slight build up of green gunk which probably came from environmental moisture (not sure).
Possibly related to this is that when connecting PC to phone, some USB cables won't work (and sometimes power surge), some only works in one orientation, some only works via the wall charger.
Before I send my phone in for repair, just wondering if anyone here has had a similar problem, and what you did to fix it. Any help and comments will be appreciated.
Hi, i had this corrosion too, what i did (maybe not so sure way) its cleaning the corrosion that was between the pins of the connector, so first i turned off the phone and then i removed it with a needle, be careful with the pins. When you finish use a brush to clean the port a little more and remove the dust it may have, you can put alcohol on the brush.
If your cables are not working you can try to press a bit both horizontal sides of the connector to ensure the pins are always touching. Thats what i did when my usb c cable started to connect and disconnect the phone randomly when i just moved it a little.
ClementNg23 said:
When looking into the USB port I noticed there is a slight build up of green gunk which probably came from environmental moisture (not sure).
Possibly related to this is that when connecting PC to phone, some USB cables won't work (and sometimes power surge), some only works in one orientation, some only works via the wall charger.
Before I send my phone in for repair, just wondering if anyone here has had a similar problem, and what you did to fix it. Any help and comments will be appreciated.
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Click to collapse
Hey. Welcome to the club mate. I screwed up my charging port after a trip in Thailand. Some underwater diving & swimming caused the green junk in my port.
I had the same issue such as yours after the trip, Charging was fine but connection through usb on a computer was screwed up.
What I did was, cleaned the charging port with alcohol (Nail polish remover), let it dry & sent it to a nearby Sony Service centre.
They replaced my mother board for free (In warranty). The best part was I had my bootloader unlocked & they gave me a new motherboard with a locked bootloader
Sony service center employees don't know **** about Bootloaders in my country, I'm from India btw.
So before my xz premium completely stopped charging my phone used to randomly stop charging and charged very slow I used quick charge 3.0 and certified usb c cable I had to put the usb type c cable in a certain position to get my phone charging but after a while it completely stopped charging I inspected the port it was fine no bent nor broken cleaned the port but it didn’t charge after sometime I started messing with the phone so I found a way to charge it when I put pressure on the bottom of the phone from front and rear of phone where usb port and flex cable is connected it starts charging but I have to put a lot of pressure to get it to charging I don’t know about hardware so I am here If someone can guide me ty.
Is the charge manager enabled?
In this case the manager try to think at which time you disconneythe the phone from charger and stopped after a while to continue in front of disconnect (or what he think at which time it is)
No the charge manager or (Battery Care) is not enabled but I opened the device myself because I thought it might be a loose connection of charging port's flex cable but it was connected to the motherboard fine but the situation was the same I pressed the flex cable where it connects to the motherboard and the phone started charging I think it's some sort of motherboard problem as it happened with some other xz premium users as well.
P.S:Replacing the charging port didn't fixed the problem.
Hello,
I had a similar problem.
At first it only carried in certain positions or pressing the region where the flat connection. After 1 months it stopped completely.
My problem was in the motherboard charge connector, I needed to buy a new connector to replace with solder. After 30 days, everything continues to function normally.
Wawawagl said:
Hello,
I had a similar problem.
At first it only carried in certain positions or pressing the region where the flat connection. After 1 months it stopped completely.
My problem was in the motherboard charge connector, I needed to buy a new connector to replace with solder. After 30 days, everything continues to function normally.
Click to expand...
Click to collapse
Thank you very much that's the answer I was looking for one more thing can you guide where to buy the connecter for the motherboard and can you tell me how did you manage to replace it.
Update I just got mine fixed the btb connecter for the charging port on the motherboard was loose it needed to be resoldered in case it is more damaged you should get a new btb connecter I'll put the link to buy from link: https://rounded.com/sony-board-connector-btb-socket-2x10pin-1306-0093.html
can u guide me how to do it?
If u know any trusted and skilled repair person just tell him what the problem is and make sure the repair person fix it the right way as described otherwise he might end up damaging ur phone.
alrighty thankss, i'll update soonnn, i already change the port but it still the same
Hello, can you update me on this, i'm facing the same issue. Let me know if this fixed your problem.
yukikunn said:
alrighty thankss, i'll update soonnn, i already change the port but it still the same
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Click to collapse
Changing the port won't fix the issue it can only be resolved if u change the btb connector on the motherboard.
Anyone knowing how to do it?
Hi. Stripped phone down and removed old BtB connector. How do you solder the new part to the motherboard. Is it just the four corners you solder or do all x10 pins on each side need to be soldered?
Can somebody who has changed a BtB put a step by step guide if poss?
yukikunn said:
can u guide me how to do it?
Click to expand...
Click to collapse
ok update i've been trying to repair it/solder it in a couple 3rd repair (because there's no sony xperia service center here in indonesia..) and they say they can't, then i wen't to this repair shop (this one looks not promising) then i got a message after 3 day they say they can't repair it, i was hopeless, i left my phone there.., and after 1 and a half month i think, i finally went to get my phone, and when i arrives to get my phone they charge me 15$, in my head i was thinking "why they charge me? they didn't even fix it"
then the repair man said "we fix it" i was shock they didn't even message me and said it was fixed (they have to) so i pay the 15$ and check the phone its completely normal it's charging the fast charge work, but.. they reinstalled everything (factory reset) kinda strange.. but it's find ok so that's it