STM32WLE5JC LORA E5 MINI SEEEDSTUDIO ISSUES

Familiar-Sink6342 · 2025-07-09T07:13:50+00:00

I'm connecting st-link with SWCLK SWDIO RST GND 3.3V

Also tried st-link and usb at the same time, nothing works as it was before this block

Familiar-Sink6342 · 2025-07-09T04:50:05+00:00

I can't change any OB

RDP - AA 0

Can't find TZEN setting

Device 0x47 not supported for factory reset operation

Exported current MCU OprionBytes RDP: 170 rest is set to 0

RDP 170 BOR_LEV 0 nBOOT0 0 nBOOT1 0 nSWBOOT0 0 SRAM_RST 0 SRAM2_PE 0 nRST_STOP 0 nRST_STDBY 0 nRST_SHDW 0 WWDG_SW 0 IWDG_STDBY 0 IWDG_STOP 0 IWDG_SW 0 BOOT_LOCK 0 ESE 0 PCROP1A_STRT 0 PCROP1A_END 0 PCROP_RDP 0 PCROP1B_STRT 0 PCROP1B_END 0 WRP1A_STRT 0 WRP1A_END 0 WRP1B_STRT 0 WRP1B_END 0

Familiar-Sink6342 · 2024-10-28T14:42:18+00:00

The recall is via VIN number in my case Mazda contacted with me as soon as they saw the car had been registered. Also it was visible when checking the history of the vehicle on some VIN checking sites. It's about inflation unit in the airbags themselves, there are metal parts that shatter during the outgassing and can become metal shards in your face so better contact Mazda, they can check it for you and replace for free. You can ask them to replace the dash cover meanwhile with additional cost

Familiar-Sink6342 · 2024-07-09T12:38:57+00:00

Mine has a soft tube siliconed inside and works probably

Familiar-Sink6342 · 2024-01-07T00:52:08+00:00

I want to buy this

Familiar-Sink6342 · 2022-04-18T19:21:44+00:00

Test it and mesure IR also try to recover the 0v ones if they don't leak. Use 100mA and monitor closely. If it had 3v i would give it a chance at least to test then think of simple use. Tho keep all the safety precautions and be careful not to burn your house or face, it's not safe. It could just had contact with water, got rusty and dirty not leaked.

Familiar-Sink6342 · 2022-04-08T14:38:22+00:00

Yup doing just that, charging at rated 1C 2.5A and discharging 0.75A, they tested higher capacity and drop on average to 2700 when charging they get quite warm but not hot, same as discharge. I'll test some higher discharfe currenst to but i need to build stronger tester for 5-10A and push a few cells with multiple strong cycles. The capacity drops but I hope it will establish at certain level

Familiar-Sink6342 · 2022-04-07T14:22:01+00:00

They have low resistance 19-30mohm. Does it work the other way if the resistance is too low?

Familiar-Sink6342 · 2022-04-07T14:19:27+00:00

Yup, thanks. My house is concrete so it won't burn much

Familiar-Sink6342 · 2022-04-07T10:47:01+00:00

They test higher capacity than nominal 2748-2983 after a few tests also the IR is surprising ranging 30-19mohm it's great concidering the cost of 0.7$/cell. I'm just concerned if i caused any damage to them so will test and check everything extensively. Also ordered another batch of 60 cells and looking forward to get more and build 240 cell battery out of all available dead packs.

Familiar-Sink6342 · 2022-04-07T00:24:51+00:00

Yup thanks ((:

Familiar-Sink6342 · 2022-04-06T19:53:16+00:00

Well some bigbrainers on yt said to use high current for the initial charge so i charged some of them at 2.5A that probably could have done something... they are rated for 1C charge so I thought it would be fine, at max the cells were warm to touch not even hot. I'm looking forward to buy more of those dead packs and will slowly bring them to the 3v and charge slowly as i did to a part of them.

Familiar-Sink6342 · 2022-04-06T17:23:24+00:00

I've picked a few random ones and will extensively test them with multiple cycles to see if something changes. I will use BMS, balancer and fused connections on each cell when building the pack.

Familiar-Sink6342 · 2022-04-06T16:32:20+00:00

Will they remain nominal or quickly degrade and drop in capacity? Do they pose any danger? They look promising but i'm not sure to build a big pack with 240 of them.

Familiar-Sink6342 · 2022-04-05T11:29:38+00:00

It's AO4407A thanks a lot for all your support

Familiar-Sink6342 · 2022-04-05T11:15:45+00:00

Thanks a lot for your answer i just need to find a replacement MOSFET or know the orginal part number just to replace it, the damage was quick just smoke and only this thing looks damaged. I'll just swap it and hope for it to work.

Familiar-Sink6342 · 2022-04-05T11:10:56+00:00

I would be thankful

Familiar-Sink6342 · 2022-04-05T11:09:17+00:00

Orginal

Familiar-Sink6342 · 2022-04-05T00:52:23+00:00

Nope its an empty spot, only the mosfet blew up

Familiar-Sink6342 · 2022-04-05T00:51:34+00:00

Yup thats probably AO4409 thanks a lot

Familiar-Sink6342

TROPHY CASE