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Hi again guys, so this morning i took my Galaxy 4G that was not charging the battery for some reason. And changed the charging port because i thought that was going to be it. Funny enough it didnt do the trick. So i checked, double checked and triple checked the solder points and everything was fine. I can read the 5 volts on the charging port pins but thats it. When i connect the usb to the wall, it shows like charging sequence is starting but then all of the sudden the screen will go off and thats it.
Ive been having a very similar situation with a couple infuse mobos i have, but just similar in terms of charging. If i put an already charged battery on the t959v it will turn on and work just fine. It even recognizes the debbuging mode. In fact after i changed the charging port i applied the unbrickable mod to the mobo and it worked perfectly. But still, battery wont charged. The infuse mobos wont turn on they just get stock in a bootloop. So please if someone knows about some schematic made for this phone or knows the route for those 5volts please help me... I would like to at least check the closest pins where those 5volts are supposed to go before giving up with that phone.
This seems like something bhundven, m4m4n or raverx3x would know... I would pm them . Good luck with the hardware tinkering.
EDIT
Asked bhundven for you. He said he hasn't found any .
No. If you find them, we would like them too.
But I doubt you will find them.
We do have the specification (user manual) for the s5pc110 (exynos 3110). but it is not specific to our phone.
Yeap, thats what i thought. I do have that for the i9000 and the original t959. I mean some pinouts i made myself using working mobos. But i dont have that for the t959v. And since the mobo is not working as it should i dont think i will be lucky trying to check pinouts on a non working mobo.
So, a friend brought me his galaxy 4g so that i could take it apart and check for the pins i was looking for. Shure enough i found them, but too unlucky it didnt matter. It seems like its either an ic or one of those resistors shorted. But anyways thanks guys
Ok people so im editing this post because ive found the solution for my problem. Guess what? So i decided to give it a try to the reflow blower on my soldering station. Since i thought it may have been some soldering points or something that had a lose contact. Well, it was!!! Now i have my galaxy 4G working again. Im going to open it back one more time and try to use flux so that i make sure the solder points are nicely welded. Never seen something like that on a galaxy phone but hey, It worked!!!!!!
I never charge my phone....I bought an OEM external charger that came with 1 battery and then bought 3 OEM batteries for $6.00 each.
This way the only time I need the port is to hook it up to the comp.
Just a thought
Yeah, thats actually a good idea to keep your phone working. But the thing is that i do have a bunch of phones. Many of them because i buy them from friends who have them and something is wrong with them(Phones). So i buy them cheap and use them to test things and have fun flashing or stuff like that. And that one was the case, in fact, i bought it because the phone wasnt charging. But i thought the solution was to change the usb port since i saw the + contact inside the port twisted. But i changed the port and it didnt work. Like i said on a different thread, i work with electronics on a daily basis so for me this is just fun...
enelyam said:
Yeap, thats what i thought. I do have that for the i9000 and the original t959. I mean some pinouts i made myself using working mobos. But i dont have that for the t959v. And since the mobo is not working as it should i dont think i will be lucky trying to check pinouts on a non working mobo.
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Good day sir I noticed you said you have schematics for Samsung T959. Is this true? I am looking for schematics to apply the unbrickable mod with the xOM5 resistor. Do you have schematic for this? Can you please share?
alexragwen said:
...unbrickable mod...
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Those of us with an interest in kernel development would still kill for schematics or board traces. Neither have ever surfaced, that I know of. I believe that the previous poster was referring to the various SoC documentation that has been out there, but that won't tell you where to put the resistor.
The SGS4G is pretty unbrickable as it sits, as long as you don't muck with the bootloaders.
If you still want the unbrickable mod, I'd search through these SGS4G forums as I think @bhundven may have looked into it or done it. Search is your best bet as I think he's taking a break from phone-dev work.
Kit Kat is out... Gimmie a break!
jeffsf said:
If you still want the unbrickable mod, I'd search through these SGS4G forums as I think @bhundven may have looked into it or done it.
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Actually, @AdamOutler did the modification for me, but I risked the sacrifice to make it possible for our device (SGH-T959V/W).
See: This and this.
jeffsf said:
Search is your best bet as I think he's taking a break from phone-dev work.
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Yes, I'm currently taking a break from phone hacking. I'm working on my own mental health and focus on my work.
Well, i dont think youll need an schematic to apply unbrickable mod. To be honestm pictures attached by Adam look way too clear for us to miss it. Thruth is i have been looking for a couple mobos schematics and been able to find some. For example last week i needed the N7000 Galaxy Note schematic to find the sim card pinout for a customer who broke the soldering on the mobo of a N7000 Galaxy. Lucky enough i found it. So, search will always be our best tool.
My poor Nexus S was broken . I sent it to a repaire store, they said the flash disk and CPU were broken, and need to be replaced. Have you ever meet this? How much shall be payed?
They're soldered onto the motherboard, you can try buying phones with broken screens and swap their motherboard. Just have to make sure you end up with one with a clean IMEI and a working charging port.
does anybody know it?
He just answered u.
you can also call samsung for price if they replace
Hello, while trying to repair the screen, i accidentally cut the one head of the wifi antenna cable.
So here come my questions:
First simple noob question, Is this cable two way? Or one way?
If it is one way, i can fix it easily, if not, i think i need a new one. Do you know where i can find one?
I would have already tested to see if it works, as i attached the head back, but i am afraid that this might cause greater damage, so i am waiting for you answer first, thank you!
ergotelis said:
Hello, while trying to repair the screen, i accidentally cut the one head of the wifi antenna cable.
So here come my questions:
First simple noob question, Is this cable two way? Or one way?
If it is one way, i can fix it easily, if not, i think i need a new one. Do you know where i can find one?
I would have already tested to see if it works, as i attached the head back, but i am afraid that this might cause greater damage, so i am waiting for you answer first, thank you!
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Anyone? At least, the simple one question, is this small antenna cable one way or two way? All phones have such cable, so, can you please inform me according to your experience, these are in other phones one or two way?
Thank you!
One last bump, no one knows if this small classic antenna cable,which can be found in all mobiles, is two or one way?
Damaged wire.
I apparently have damaged mine as well. No luck finding a replacement so far. It is a double ended connector though, if you take the bottom plate where the speakers are housed, you will see the other end of the cable that runs from the motherboard to the daughter-board.
Hey everyone,
recently my SC-02h (Jap Docomo version) hard-bricked and has no way to recover besides JTAG or motherboard replacement.
This made me think of an experiment.
Can you replace any motherboard (which includes all chips and the storage) with another.
I ordered the g935FD dual sim version with the Exynos chip, this compared to my QC single sim version which is currently bricked.
Hopefully within the next few days I'll receive the motherboard and start the replacement process (I will probable film it) to see if it works.
If so, anyone could replace their motherboard by a new one that is unlocked or has a different chipset.
Please discuss here if you're also interested in changing your own mobo with another.
Can't see why it won't work as the motherboard is what determines the model. Just make sure you order up a dual SIM tray too.
Motherboards from different chipsets *may* have different connections on how things wire up. I'm not saying they do, I'm just thinking out loud. I'd only buy a replacement motherboard from the same variant.
And good luck finding a new motherboard. At the price they sell for, you'd be better off buying a whole new phone.
Would like to see how this goes. Please record the process.
Sent from my SM-G935T using Tapatalk
lyriquidperfection said:
Can't see why it won't work as the motherboard is what determines the model. Just make sure you order up a dual SIM tray too.
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Yea I ordered that one, although I thought the tray looks the same (bottom part), so until my new one arrives I'll use the older one.
the_scotsman said:
Motherboards from different chipsets *may* have different connections on how things wire up. I'm not saying they do, I'm just thinking out loud. I'd only buy a replacement motherboard from the same variant.
And good luck finding a new motherboard. At the price they sell for, you'd be better off buying a whole new phone.
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I checked the connections and they are the same, the only thing that differs is the sim holder and the chipset.
Also a new phone (unlocked) costs at least 2,5times more (live in Japan).
dogredwing1 said:
Would like to see how this goes. Please record the process.
Sent from my SM-G935T using Tapatalk
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I'll record it on video as soon as it arrives, also the process of taking it out and replacing it completely. So if it ends up in failure you can all see it.
In what way is it bricked? The S7 is almost impossible to brick.
CuBz90 said:
In what way is it bricked? The S7 is almost impossible to brick.
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Hmm I flashed a rom with TWRP, (lineage, but wrong build) after that I rebooted and the phone stopped responding completely.
So black screen, no led when charging, no response at all when pressing buttons.
Even disconnecting battery and reconnecting didn't work.
Also no recognition in windows when connected to USB
totalvamp said:
Hmm I flashed a rom with TWRP, (lineage, but wrong build) after that I rebooted and the phone stopped responding completely.
So black screen, no led when charging, no response at all when pressing buttons.
Even disconnecting battery and reconnecting didn't work.
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Can't get to download mode?
CuBz90 said:
Can't get to download mode?
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Well if I could I wouldn't be ordering a new MoBo
Even made a USB JIG
Another thing you might lose is waterproofness. I cracked my screen badly and instead of repairing it at a 3rd party shop, I sold it and got a new one. Coz it won't be waterproof anymore..
thedisturbedone said:
Another thing you might lose is waterproofness. I cracked my screen badly and instead of repairing it at a 3rd party shop, I sold it and got a new one. Coz it won't be waterproof anymore..
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i should be fine, just get it glued back together properly.
besides i don't really care about it.
Unless the other components (camera, vibrator motor, various sensors, OLED Panel etc.) don't differ in the way they talk to the mainboard, I don't see why it shouldn't work. As others have said, I'd really love to see how it'll work out for you. So, thanks for sharing =)
Well it didn't work out, I put in the new motherboard but the phone didn't power on at all. There is also no led when trying to charge it. I'll be sending it back to the supplier and buy another version instead.
https://www.youtube.com/watch?v=jym2aNwRmkc
Made a video of the process and failure
totalvamp said:
https://www.youtube.com/watch?v=jym2aNwRmkc
Made a video of the process and failure
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Was interesting to watch, however you only tried powering on twice and quit?
Connecting a charger had no effect?
Unless the board your received was dead to begin with.
totalvamp said:
https://www.youtube.com/watch?v=jym2aNwRmkc
Made a video of the process and failure
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Click to collapse
Can you share the link of where you bought the motherboard? It might be that you bought a blank motherboard. In that case you want it to be flashed with the correct IMEI and partition (table?). AFAIK the IMEI has to be that of your previous phone since you can't just "create" a new IMEI. Don't even want to get into the legal repercussions but here's a sneak peak; in some countries it's a criminal offence to alter an IMEI or even have tools to alter IMEI. Don't quote me on this and I'm asking the community to correct me. If the motherboard comes from a previously active device, it should have its own IMEI and none of what I said before matters.
Whatever, none of that necessarily explain why it didn't boot up. Have you tried charging and plugging it to a PC? If it isn't dead, your PC should at least detect A device.
murtaza02 said:
Was interesting to watch, however you only tried powering on twice and quit?
Connecting a charger had no effect?
Unless the board your received was dead to begin with.
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Click to collapse
Well I tried a few times after that and after letting it on a charger, still no response.
nitrous² said:
Can you share the link of where you bought the motherboard? It might be that you bought a blank motherboard. In that case you want it to be flashed with the correct IMEI and partition (table?). AFAIK the IMEI has to be that of your previous phone since you can't just "create" a new IMEI. Don't even want to get into the legal repercussions but here's a sneak peak; in some countries it's a criminal offence to alter an IMEI or even have tools to alter IMEI. Don't quote me on this and I'm asking the community to correct me. If the motherboard comes from a previously active device, it should have its own IMEI and none of what I said before matters.
Whatever, none of that necessarily explain why it didn't boot up. Have you tried charging and plugging it to a PC? If it isn't dead, your PC should at least detect A device.
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http://www.ebay.com/itm/MAIN-MOTHER.../182310990269?ssPageName=ADME:X:RRNTB:NL:3160
It should be one with an IMEI how else can it be unlocked.
I tried plugging it in as well, but my PC doesn't recognise it at all.
I've ordered a different one this time, this motherboard was also slightly different from the one I had (2 cables instead of 3) so it might be incompatible.
I ordered this one now: https://www.aliexpress.com/snapshot/0.html?orderId=82116420384467&productId=32737224430
Did you end up having any luck with the second motherboard?
Or has anyone else attempted this before?
I'm looking to swap my qc chip for the exynos.
How was the operation??
Hello i'm interested to know how was the experiment becouse i wanna try almost the same thing, i have a s7 sm935fd and i wanna change the motherboard for a sm935f model. Please answer me!
I am also going to try swapping motherboards. How did yours work out?
Hi @totalvamp,
I am going to try swapping out a good motherboard from a banged up sprint G930P phone with a clean IMEI into a clean, whole, G930X demo model that I picked up cheap on Ebay.
The "X" demo phones work on WIFI only. I understand that the "X" motherboards are missing the cellular radios, which is why I am trying this swap -- it should be far easier and less costly than doing a full screen&LCD replacement, which requires tearing down the entire phone, and costs about $150. Hopefullly, I will just have to remove the back, the QI receiver and I think the camera, and I'll get access to the motherboard.
My hope is that all the rest of the parts are present -- we'll see how it goes.
I look forward to hearing from you.
Philip
Okay have this phone a while but only as back up
However its not reading any Sim but where the sim goes in bit cracked.
Anyone got any ideas as to try and fix this?
If not going to check in brick and mortars shop to see if it can be fixed
it is possible, that the Sim / Simholder was insert in the wrong direction?
In this case the cardholder could be broken. This is/was a known issue, where everyone with this phone must give attention
So is there any solution to this if it is the case.
Take it not easy to find a new tray?
If it really this issue, a new Small part (Cardholder) must be replaced. The part is not expensive, the biggest part is the work. But possible
Bought new cardholder and same issue not reading
Any other suggestions or just leave it in for repair
funkyirishman said:
Bought new cardholder and same issue not reading
Any other suggestions or just leave it in for repair
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Sounds like at some point somebody shoved in a standard sim instead of a micro sim, or shoved it in backwards. Either way I'd get a multimeter and test the voltage for the sim connectors by taking the back of the phone off. This is basically what they would do at the phone repair shop if they couldn't get it to read any Sims, before entirely replacing it. This way you'd know exactly what is wrong with your sim port.
The oneplus one takes micro sims not nano sims