EM05-G Firmware flashing fail, FAIL, DL_Firehose, Time out!

Hi~
EM05 module FW ver is bleow
at+qgmr
EM05GFAR07A07M1G_01.011.01.011
and I’m trying F/W update to EM05GFAR07A07M1G_40.001.40.001
but I got this meassage FAIL, DL_Firehose, Time out!
and I found a some note is it right?
then can you send me a middle version?
Please help me
thanks

EM05GFAR07A07M1G_01.011.01.011 can not flashed with the EM05GFAR07A07M1G_40.001.40.001.
As I guess it is customerized firmware. If yes, we cannot get the firmware on the forum.
Please check
AT+QCFG="secbootstat"


I bought EM05-G on the internet and I’m trying to update F/W, but it’s a default version, so I can’t customize it.

EM05GFAR07A07M1G_01.011.01.011 is very old device. Quectel didn’t provide any later firmware for it.