Panovchina,
I have bundled with JTAG even special adapters for eMMC chips. Only I have no equipment and skills for soldering.

Yes, this is a strange problem; the Chinese won 14 thousand equipment. But to learn - he took a dead handkerchief, planted / removed a dead chip 5 times and everything, now I pull these chips to the right to the left and everything works :) There is no damn stencil, so I would have removed it already, just how to set it back later. And about JTAG, I looked at everything and realized that this is some kind of nonsense. Why cheat with this JTAG if there is a card reader))) The card reader does not cost anything, and this JTAG costs like a new phone) For a computer, damn, a programmer for 150 rubles sews any flash drives, and a programmer for 300 also any cartoons) with free software. And then a scarf with 1 micron and strapping with ports costs 11k))))

By the way, here's another, I have Jlink for ARM. Only I sewed them microcontrollers) There with qualcomm and close there is nothing

Mainly because of the software and files to it.

Here is a found:https://gsmserver.com/...lashing-and-unlocking/If there is a supported phone with the same process, then it should fit. In the end, I also made Samsung a preset for Nokia.


The problem is that eMMC still needs to be initialized.

In short, it seems to me that you have no choice, just buy boxing. In other cases, you would rather fry the percents than do something.

Why not to buy a new phone on ebay and not to bathe, and this one in the trash can: D What, you never threw mobile phones in the trash? I - repeatedly ...

P.S. By the way, maybe you can tell me (this is me to-WOLF- u): one of my L-521s is strangely "sighing away" - it loads (it is loaded in UI), but programs that actively access storage on a recording cause a reboot (and there is no real recording, for example, my settings in the app storage). WDRT doesn't help either: almost immediately after switching to flash mode (in 3-4 seconds), the phone restarts. Since I do not understand the schematics,;) I can say that it seems that the eMMC / NAND or the controller is “dead”. And what do you say?

Post has been editedsensboston - 02.06.17, 21:44

in idle or with firmware?

With firmware.

sensboston,
Very similar to the "chip dump", although it may be completely dead.

I guess so too. Well, then the easiest way to send in the trash.

Here, the fact that I will fix it) And then I will help more than one thousand people with such mobile phones, maybe) Right now I will find the eMMC, mark it on the board and upload it to the Internet. Addresses for which there should be sections with loaders - found. Prog, which can write to disk aka hex editor found. Right now, without incident, unsolder the flash, although with a scarf of 10 square centimeters there can be no physical incidents, the tester will find the findings to be recorded and soldered back. If it does not start, search for the findings from this situation. That's all. Damn, of course, the macroscopic hoopoe, of course, could not just put the programmer’s files on the network) There is a panic on the forums, everyone has this particular rm-892 not stitched. Attitudes towards customers, like shit. Remil is like HP's laptop of the year since 2006, as far as beastly software is there, so in spite of this on the official website you can pull out any position from any position without a soldering iron. He can even flash bios from the "brick" mode with flash drives

sensboston,
Push on W / H with ebay. The original screen (if whole) is a worthwhile thing.

"Agashaz", a thousand people rushed to buy programmers and go to jtag: D


Yes, it's lazy: the benefits are a couple of dollars (after shipping and ebay + paypal fee), I can’t even reset it (the record doesn’t seem to work completely: while writing to the cache (for example, app settings), it saves how it will be rebooted - values ​​appear).

But what a jtag-u, you probably just did not read the previous posts :)

I read diagonally, because for me this is all not true. Well, not through jtag, but through the programmer, with the chip being fed in, in addition (by the way, how are you going to get it drunk? I, though not a pro, heard that this is not a simple matter, you need a good soldering station with suction). I find it difficult to determine the exact number of L-925 users with this problem who have a programmer, knowledge and skills to fix, but I assume that it is vanishingly small;)

Post has been editedsensboston - 05.06.17, 02:22

Fuck, suction is of course a rare and very important thing) Suction is of course all is well, but such a "huge" chip can be done with tweezers) Vaughn found the topic, they upload the card reader through Linux bootloader, so I'm on the right track

Post has been editedPanovchina - 05.06.17, 11:30

We solder the card reader, boot into Linux or via another tablet with android in the terminal, write flashnul<disk number>-L SBL1.bin -r = 10485760. Disk number - the disk on which the emmc card reader was determined. Then any .bin file with a section, -r - the address to which we will write

Posted 05/06/2017 11:39:

Another amendment - the card reader should be pci-e, the usual one can only edit in the user area

Oooooooo cool - through the MMC command, you can make Field Firmware Update, and the firmware files are just the .ffu files for the same purposes. Only we will pour them directly into the flash drive, bypassing the processor. All right, now everything is clear)

I have a feeling that you are talking about some kind of magic :)
Not sure if there is expediency in your actions, but if you manage to revive the phone, it will be cool :)

I do not believe that everything is so simple something too) I’m blaming it just for the sake of interest)

Why rare? In modern times, the thing is not at all rare, and not so expensive. Yes, it is not the chips that are sucked off, but the solder :) Of course, if you have “sharpened your hands”, then you can drop out the nail.

Do you then document the whole process, write video or make photos, since you try for the interest and the public (in principle, “for the sake of interest” is also quite a motivator, from my point of view).