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881w cellular cwe upgrade

any advice on firmware upgrade for a card mc7750 in 881w. this is vzw lte card. When executing the microcode receive the following error:

The file flash:MC7750_VZW_03.05.10.06_00.cwe is too big!

Firmware Upgrade Config file is needed to proceed

with the provisioning of the modem

Please check the file name and retry the command

Fail: Unable to download config file flash:MC7750_VZW_03.05.10.06_00.cwe

Fail: Could not create config spec

Modem Upgrade Failed

(sw) Microcode/ Provision modem failed

thanks in advance.

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