Battery Grip BG-E22 Firmware Update Won't Load on EOS R5

[cptiger44]

BG-E22 Firmware Update, Version 1.1.0 [Windows] will not load.  Existing software is 1.0.0. Camera on, BG on, file unzipped, on SD card.  Any ideas?  Thx  

[rs-eos]

See this Similar Thread.  The recommendation there is to remove the battery grip (and any other accessories) and see if the firmware can then be updated.

[cptiger44]

Thx so much for reply.  Removing the BG eliminates it from Firmware update window on camera menu.  Removing the lens had no effect.  I had no difficulty updating to vers 1.8.1.  The camera does not seem to recognize the firmware file on the SD card.  I retried procedure, redownload, unzip, transfer to reformatted SD card, Same result.