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V9 Prime Upgrade PIN
Posted: Fri Apr 14, 2023 7:46 pm
by wlf
Dear support,
can you post a image of PIN socket with the TX/RX/GND specification?
Is it like V8UHD?
Thank you, regards.
Re: V9 Prime Upgrade PIN
Posted: Fri Apr 14, 2023 8:41 pm
by CAJE
JST connections are the same on the motherboard
Re: V9 Prime Upgrade PIN
Posted: Fri Apr 14, 2023 11:36 pm
by wlf
Is not clear the orientation; RX pin is the center, TX pin is the front side or rear side?
When I start STB EPROM upgrade tool, at the first next I see "Synchronizing STBs ... Please reset target!" and not skip to download.
How can I reset target; I need to power on? Or is there a procedure to reset target?
Thank you, regards.
Re: V9 Prime Upgrade PIN
Posted: Sat Apr 15, 2023 2:09 am
by cpr43
wlf wrote: ↑Fri Apr 14, 2023 7:46 pm
Dear support,
can you post a image of PIN socket with the TX/RX/GND specification?
Is it like V8UHD?
Thank you, regards.
Read here:
viewtopic.php?f=51&t=28846
Re: V9 Prime Upgrade PIN
Posted: Sat Apr 15, 2023 6:59 am
by wlf
Could you send me a aliexpress link where find a JST 3 pin to buy?
I have connect the decoder like your shema.
I start the STB EPROM upgrade tool 2.2.2.0, at step 1 I configure Port COM3 (windows tell me that USB adapter get COM3 address), bit rate 115200, Parity Even, Operate Mode Upgrade, File I use GTMedia_V9Prime_V175_20220520.bin, Include Bootloader selected. I click to Next and after power on the decoder.
I see "Synchronizing STBs ... Please reset target!"; the process is hold, it goes no further.
In front panel I see "boot" and "On"; I must see other?
What is the correct sequence? The decoder must be powered when I start? How can I reset target?
PS. I need to downgrade because the PVR function don't work with Mars and V9 Prime! I need it today.
Re: V9 Prime Upgrade PIN
Posted: Sun Apr 16, 2023 10:27 am
by wlf
With Putty and 115200 8Bit 1Stop bit Parity Even I see:
Code: Select all
/r~▒Bnj~~▒B6▒▒+▒▒S▒ZFrBnjN~JzZF▒jF.6~
~>>:>>6>>z▒▒
For me decoder serial port communicate but I suspect that don't communicate with a right settings!
I suspect that there is a wrong setting and the STB EROM upgrade tool 2.2.2.0 don't communicate with the board. Have GTMedia support tested the procedure?
It is not possible that no one has succeeded to downgrade V9 Prime; could you help me?
How can I downgrade the Mars firmware?
Thank you.
Re: V9 Prime Upgrade PIN
Posted: Thu Sep 07, 2023 9:32 pm
by lzp
Boa noite.
Só consegui fazer uma vez:
Flash.bin (com atualização que vai colocar) em um pendrive e
ligando na tomada e dando "boot" pelo controle (tecla power ou menu acho).
Re: V9 Prime Upgrade PIN
Posted: Mon Jan 15, 2024 7:04 am
by gtm9p
try this, remove the eeprom from the board and flash the eeprom using ch3410
Re: V9 Prime Upgrade PIN
Posted: Mon Jan 15, 2024 8:33 am
by CAJE
It is not necessary to remove the Epron from the board, it works if the clip is not deformed