It comes when I was trying to hack Nokia E90 on firmware 4.00 (S60 3rd Edition).
Hint: This message pops up when you attempt to install developer certificate in the unsupported device. The developer certificate from Symbian Signed can only be used in a limited number of devices. Remember that you have to send your IMEIs to Symbian Signed when requesting certificate. You cannot use the certificate in other devices that is not in your IMEIs list.
Later I find out that imobile.com.cn generated invalid certificate (.cer) file for my phone. I believe that I put my IMEI number correctly. I charge imobile.com.cn for this faulty.
Another website to generate such files is OPDA.cn.
Click here toregister on OPDA.cn and request the .cer and .key files.
When this message appears:
Unable to install a protected application from an untrusted supplier
It can be removed by signing HelloOx version 1.04 rather than version 1.03.
More error message can be found here: Interpreting Platform Security Error Messages in S60 3rd Edition
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Hi,
http://www.ryan-isra.net – da best. Keep it going!
Tania
Thanks Tania.
how bout 5630? i have this problem when i hack my phone in phoenix2009.. in firbushing the unit of flashing process of unit i encountered error due to this one..RM-431MU41_RM431_0634424_PHILIPPINES_4GB.fpsx how can i solve it? can you help me out? please, thanks! eydi from philippines… m/ |^_^| m/