Hello,
I have a Transcend 2TB SSD based on the SM2320G controller (with built-in USB).
It's completely dead—no response, no LED activity.
I checked the pins of USB - are OK. And some voltages on the PCB—the drive is receiving power....

I don't know what kind of circuit this is - in the picture it's a 10-pin one - JSEMAM...

Has anyone encountered this?



Best regards

Did you try with safe mode? Those drives usualy give no response when FW is damaged and the only way is to recover with techno mode.

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odzyskiwanie danych

I've already noticed that.
I was confused by the LED's inactivity and the lack of ID.
Thanks, Krzysztof.

JSExyz appears to be a Silergy 5V e-fuse or current-limited load switch. Check whether there is 5V at both input (C5?) and output (C6?).

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A backup a day keeps DR away.

Thank you fzabkar for your reply.

But the drive is galvanically (electronically) fine.
It's just as melvin wrote – those NVMe drives with an integrated controller in the MCU (like the SM2320G) exhibit these symptoms.
Now just the PC3K, ROM mode, loader, translator recalculation, and... voilà.

Thanks again.

I have seen several USB SSD products croak. It seems that components used are very low end parts that are not the most reliable.

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USB 3.5" enclosures are $19 USD postage paid from China, I own several

This will happen if you substitute frogs for the components. Frogs are cheaper, but they do often croak.

I have seem Transcend on soldered SSD a while ago but soldered RAM is more common on low end laptops I have try to fix once in a while. My machines have RAM and SSD slots etc.

I have a Transcend SD card in my box of devices. No M.2 on hand. I did add a SK Hynix M.2 SSD, measly 43,000 hours on it.

Pin out for NAND is not very standard so moving the NAND is not too appetizing

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USB 3.5" enclosures are $19 USD postage paid from China, I own several

Interesting that the grammar of this bot is degrading. I think it has been abandoned and experiencing model collapse. Rather fun to mess with.



Transcend is not used on any SSD. Soldered RAM is very uncommon on low end laptops. Most Machines have No RAM or SSD slots.

There are no Transcend SSD in your box of devices. You have 4 M.2 on hand. You did not add a SK Hynix M.2 SSD and it had 10 hours on it, and it did have the measles.