# GR64 Rev 3 not work

**URL:** <https://forum.sierrawireless.com/t/gr64-rev-3-not-work/2239>\
**Category:** Legacy AirPrime modules\
**Created:** [June 12, 2008, 9:46am UTC](https://forum.sierrawireless.com/t/gr64-rev-3-not-work/2239 "2008-06-12T09:46:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![uta](https://avatars.discourse-cdn.com/v4/letter/u/d78d45/32.png) [@uta](https://forum.sierrawireless.com/u/uta)\
**Post date:** [June 12, 2008, 9:46am UTC](https://forum.sierrawireless.com/t/gr64-rev-3-not-work/2239/1 "2008-06-12T09:46:57Z")

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Dear All,  
I have just bought a large number of GR 64 from china, but it doesnt seem to have the same behaviour of GR 64 I previously bought. I commanded AT\*E2IPA and returns _E2IPA:000 OK but after I commanded AT_E2IPRH=“somepublicIP” it doesnt respond anything. While the previous GR 64 worksfine. Below is some detail info from the body :

the good:  
type BAC-1051021-AB  
PN:GR64001  
on the back there is number:  
TVK1179247R2 P (typed in gold)

- Body color blue-green

the bad :  
type BAC-1051021-AB  
PN:GR64001\_8KA007  
on the back there is number:  
GR64 rev 3.0 P (typed in gold)

- Body color green pcb  
(from shenzen chn)

Please help cause I am stuck, and can’nt do any thing with all these bad GR64’s

dan