Can I install a RM-938 firmware on a RM-940 phone with no issues?

ronaldme

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Aug 27, 2014
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Hi! I want to install the RM-938 firmware (Country Variant) on my RM-940 AT&T Lumia 1520.

I've Installed different firmwares on my old Lumia 920, from different countries, but I don't know if there are issues with AT&T phones.

Thanks!

EDIT: The phone is unlocked and my SIM is not AT&T.
 

rdubmu

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May 25, 2011
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I believe the 1520 938 and 940 have different hardware, for example: QI charging, more memory/microsd support
 

ieiejdbx

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Jul 31, 2014
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YES, you can! I did it! :D
But in my case my L1520 was stuck in airplane mode. Only Re-installing the original ROM back to normal.
 

RumoredNow

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YES, you can! I did it! :D
But in my case my L1520 was stuck in airplane mode. Only Re-installing the original ROM back to normal.

​I would say that was caused by the radio firmware mismatch with radio hardware and why I would not cross flash RM-938 and RM-940.
 

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