I have a Samsung Galaxy SM-T707v and am trying to extract the memory from the emmc with my octoplus or riff box but I cannot find the JTAG pins on the board. Does anyone know where they are ? I can't post links to pictures because I am new to the forum.
capacitorpopcorn said:
I have a Samsung Galaxy SM-T707v and am trying to extract the memory from the emmc with my octoplus or riff box but I cannot find the JTAG pins on the board. Does anyone know where they are ? I can't post links to pictures because I am new to the forum.
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Is likely there are no specific jtag points, it wouldn't surprise me if Samsung disabled it anyway.
Related
Hello, does someone have the jtag pinout for the uni?
Or at least the circuit diagram...
I thought the whole point of jtag was that it was a standardised interface connector:
http://www.interfacebus.com/Design_Connector_JTAG_Bus.html
or am I misunderstanding your question?
Cheers,
yes, I know what is jtag but probably my question was misplaced.
what I would know is where are jtag testpoints on universal.
my phone is bricked and the only hope of resurrection is restore the bootloader through jtag
ah right, I'm with you now. have you checked out the universal reference manual? is it mentioned in there?
-edit- no just checked doesnt appear to have any mention or picture of one.
sadly true: the service manual doesn't mention it.
does someone has got schematics for the universal?
sigh! i'm going to believe that my uni will be forever a nice paperweight...
any news?
Hello, I'm still stuck with my uni bricked. Anyone have new suggestions or jtag pinout?
Thanks!
I payed about 50USD to have my bootloader chip replaced here in China.
cant find any other solution for the same brick here. I'v heard someone here fixed his dead bootloader by jtag DOC reflash.good luck.
Hi champro, then does you have got the bootloader chip replaced and not reflashed?
Does you could contact someone to get jtag pinout for the universal?
Thanks a lot.
Any success for bootloader solutions ? I also have a bricked universal.
Thanks
Still nothing...
Hi, I haven't debricked my uni yet. But in the meantime I'm looking for a dead mainboard (or a whole dead phone) in the way I'll could desolder the cpu to trace the jtag pins. When I'll have this pinout I'll count on the support of this forum to find a pal that will dump a working phone to restore mine.
roglio said:
Hi, I haven't debricked my uni yet. But in the meantime I'm looking for a dead mainboard (or a whole dead phone) in the way I'll could desolder the cpu to trace the jtag pins. When I'll have this pinout I'll count on the support of this forum to find a pal that will dump a working phone to restore mine.
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we are allready doing this no need to break two phones
Great!!!!!!!!
Fantastic! May I participate? I'm a average experienced user with jtag interfaces and a dead M5000 to work on!
Please is a lot of time that I'm waiting for the jtag pinout!
ok Lt.Cmdr.Ivan is going to trace the JTAG points from under the CPU of his dead Universal, last I heard he was about to put it in a toaster to get it off
You say you have JTAG experiance? When we find the points could you work out the best/only method etc to fix a broken Universal
Yes, I've already debricked a toshiba e740 pda last year. A complete success!
The best way to desolder a bga is to use a heater gun like those used to remove paint from walls. It is very cheap 15~20$. If you aim to the motherboard with this gun, surface mounted components literally fly away or fall down if is it in vertical position.
I'll wait anxiously for news!!!
i suppose who can afford a digital multimeter, can afford a hot-air soldering station as well. (well under $100 now)
anyway, you can just use a 300W infrared bulb and several hours and the work is done as well.
just pick off the plastic items before applying this heat.
Hi, any news? The number of bricked universal is growing!!!
roglioWhat software you used and what adapter LPT (wigler )or another?
If you know the points jtag as you will write in DOC (DiskOnChip) SPL and IPL ?
Just fyi progress ont he JTAG project can be found here:
The Universal JTAG Project
We found them
hi friend i search
htc touch pro2 pinouts jtag for repair my tp2 bricked
please if can help me
thanks
b,r
Heh, anyone is searching for the pins X_X That's not so easy, we are all waiting for some pro with will manage to figure this out.
Jackos said:
Heh, anyone is searching for the pins X_X That's not so easy, we are all waiting for some pro with will manage to figure this out.
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You mean something like this thread? http://forum.xda-developers.com/showthread.php?t=671998&page=3
I need JTAG pinouts for HTC Touch Pro2/Rhodium GSM
I'm in this search is necessary to repair the htc TP2 with jtag
many say that the pinout is similar to g1 and some that the topaz
investigate what I can to repair this problem
I hope I help so many
try to repair serial cable but fails to execute commands on mtty not write
thanks b,r
I can e-mail it to you.
Send a request for JTAG pinout for TouchPro2 to my e-mail - [email protected]
i am keeping an eye on sds problem now a days . i am soon going to get a (used) note2 but i dont want repaired phone from Samsung service center. how to check if motherbooard has been changed or replaced?
EDIT:- And ya sorry for my bad English (i think my title was wrong)
sorry!
Re: How do i check if chip(after sds) has been changed or not?
Well you can determine if it is prone to sds or not.
Use emmc brick bug check from play store.
Sent from my GT-N7100
UtkarshGupta said:
Well you can determine if it is prone to sds or not.
Use emmc brick bug check from play store.
Sent from my GT-N7100
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i think my title was wrong i just edited it please answer if you know...
If samsung have replaced board then it is nearly impossible to know it, unauthorized replacement can be know from two different imie, one on device and other on backside of device.
Samsung port old imei to new mother board.
Sent from my GT-N7100 using xda premium
Maybe serial and all?
this is XXXDDDAAA
If you are going to replace your motherboard from a Local unauthorized repair center then how would you the replaced motherboard is NEW not refurbished or swapped from any older one ???
please help.
Thanks:good:
JTAG dump??
I'm not sure what you are asking but JTAG is not a kind of "firmware" or "software" on your phone.
You may find a JTAG being visible either under the battery or near the SIM/SDCard holder, its a circuitary pin-layout hidden, one may have to dismantle the back cover, usually 6 gold pins in a cluster close together.
It is that, using a special hardware box that has a vast-array of cables with designated pins (depending on hardware manufacturer), along with specialized software which would be specifically made for that particular handset.
The micro-code instructions are emitted by the hardware box attached to the cable, clipped in position on top of the JTAG pin-outs, which sends a signal to some part of the chip to revive it, and then from there, a appropriate firmware can get flashed into place using this method.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
niceppl said:
please help.
Thanks:good:
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What? I really do not think you know what you are looking for.
Hi XDA,
I recently hard bricked my SPH-L710 (Sprint version of the Samsung Galaxy S3). I was going to attempt the procedure here: (http://forum.xda-developers.com/showthread.php?t=2023069) Then I quickly realized after tearing down my SPH-L710 that we have a different system board and processor (thanks sprint!). I was wondering if anyone had a shot in the dark as to whether or not there's an equivalent resistor you can trip on the SPH-L710 that will cause the device to boot from SD?
I appreciate any help. Here are some pictures of the SPH-L710 System board: http://imgur.com/a/jOJ5x#0
I've also attached the Samsung PDF(gt-i9300.7z) describing the same resistor/process to trip.
Not only that it has completely different partitions. Nothing which works on the International S3 will function on a US variant. If your looking to repair the bricked device Jtag is the only thing. It has to be reset at a partition level first before being able to reload software.
Sent from the future via Tapatalk 4
edfunkycold said:
Not only that it has completely different partitions. Nothing which works on the International S3 will function on a US variant. If your looking to repair the bricked device Jtag is the only thing. It has to be reset at a partition level first before being able to reload software.
Sent from the future via Tapatalk 4
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Yep, I actually have the appropriate PIT for the SPH-L710, though, that won't help at this point.
I called Samsung and they sent me a shipping label for repair. They didn't ask any pointed questions.
It was more or less: "What's wrong with it?, Oh it won't boot? OK we'll send you a shipping label, it'll take 2 business days to ship, 5 to repair, and 2 to ship back." I was hoping to hang on to it for a bit to try and fix it to maybe provide a solution for other SPH-L710 users, however everything I find is "It's hard bricked, just pay to get the JTAG repair". A bit disheartening as a computer scientist to have to pay to get something fixed, luckily it doesn't look like I'll have to pay Samsung.
I have a contact in Samsung's memory division, I'm going to see if they can get hook me up with a schematic for the SPH-L710.
If I find anything further, I'll update this thread. Otherwise Samsung is repairing my device.