Hacking 3ds black screen no manual update no recovery mode

[mihashi]

hi
i m new to 3ds, i bought an old 3ds EUR

already hacked so all i did was injecting 3ds games. it worked perfectly but
after few month sleeping, it gives me a black screen.
i checked threads and solutions so far these are what i tried

wifi remove trick
battery trick
exdata trick
sysnand boot tuto

i can't access to recovery mode, R+L+A+UP doesn't work
START+SELECT and START alone gives me a menu with or without the flash card

if it help i add my log file

lumaupdater.log

Checking for new Luma3DS Updater releases...
Downloading
Got error: Could not begin request
Ret code: 6
Skipping self-update...
Trying detection of current payload version...
10.1.3-3143e7e
Downloading
Could not begin request
Ret code: 6

WARN
Could not obtain latest release, skipping...
Downloading
Could not download, skipping...

checkpoint.log

[2020-05-15 08:11:30] [ INFO] Checkpoint loading started...
[2020-05-15 08:11:30] [ INFO] Checkpoint loading finished!
[2020-05-15 08:11:32] [ INFO] Found JEDEC: 0x0000000000FFFFFF
[2020-05-15 08:11:32] [ INFO] CardType (While inside maxTries loop): 0000000000000004
[2020-05-15 08:11:32] [ INFO] JEDEC ID not documented yet!
[2020-05-15 08:11:32] [ INFO] CardType (after the maxTries loop): 0000000000000001
[2020-05-15 08:11:32] [ INFO] Type: 1
[2020-06-05 01:59:18] [ INFO] Checkpoint loading started...
[2020-06-05 01:59:18] [ INFO] Checkpoint loading finished!
[2020-06-05 01:59:18] [ INFO] Found JEDEC: 0x0000000000FFFFFF
[2020-06-05 01:59:18] [ INFO] CardType (While inside maxTries loop): 0000000000000004
[2020-06-05 01:59:18] [ INFO] JEDEC ID not documented yet!
[2020-06-05 01:59:18] [ INFO] CardType (after the maxTries loop): 0000000000000001
[2020-06-05 01:59:18] [ INFO] Type: 1

 

[mihashi]

i followed a guide on youtube and updated to lumas3ds10.2.1 and godmod9 -v2.0.0
but still the same black screen
i m out of option

 

[mihashi]

i tried the 3dshack site methode
and let my 3ds on for 1h with and without the memory card
still black screen!!!!!!!!!
i m giving as much info as i can
help

 

[mihashi]

i followed this guide 3ds.hacks.guide/ctrtransfer
but to no avail