Chinese etl 908 programer firmware update help

[kojara]

Hi frends
Need help with etl 908 programer.Just recived clone with 2.8 software.When i instaled software and pluged etl to com port its say
firmware ver. 2.5 and software asked for update to new version.
Now iys going funy part,I removed jumper and puted etl to service mode 2 leds going red but software not see programer.
When i put back jumper programer is visible again.Instaled 2.7 version of software and all vorking exept 1j35d secured motorola,
i can read r1 with km but securitu locked r2 cant read.
Please if someone have solution for firmvare update or how to fix that isue.
Thanks in advance

[Dalplex]

I was trying to update firmware 2.5 but check sum not correct, trying again in log window for ever. Have to cancel. Then the programmer no longer detectable in working mode.

is it brick?