The NetworkImprovements.sis workaround does not apply to Nokia E51, sadly.
Please refer to the reply by Abi99 (2) on page 2 in this thread:
SHA2 support on Nokia C5,E71 and E72?
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Anonymous
Hi
Our company has resently renewed our external certifcate for Exchange active sync. The certificate is SHA2 signed.
From that day Nokia C5,E71 and E72 models stopped syncing.
I belive that it has to do with the SHA2 signing algoritm, and I just want to get that confirmed or confirmation that it isn´t that that causes the communication issues.
Thanks in advance
/J
Windows for home | Other | Devices and drivers
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Anonymous
2016-05-01T03:24:24+00:00 -
Anonymous
2016-06-12T11:45:19+00:00 I have the same problems with my E72 using hotmail/live.de Email accounts. I tried the Nokia-specific installation file "networking_improvements.SIS" but it won´t work on my E72. (with device date 12.02.2014)"online certificate check dismissed" or with actual date (12.06.2016) "abgelaufenes Zertifikat/no actual certificate".
Softwareversion: 091.003
Date of softwareversion: 03 April 2012
Sonderversion: 091.003.C00.01
Modell: 72-1
Typ: RM-530
last actualisation: 22.11.2010
Hints to solve the problem are very welcome. :-)
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Anonymous
2016-06-12T14:33:58+00:00 Is device "offline" when trying to install and bear in mind that networking_improvements.sis signature valid to 2016-01-02 so actual date 12/06/2016 would not work anyway?
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Anonymous
2016-06-12T15:08:39+00:00 No, it was not "offline" when trying to install that networking_improvemts. sis
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Anonymous
2016-06-14T17:42:40+00:00 With a Nokia E72, you do not need to be offline. That is since Symbian Anna. Anyway, which step did you pass already: Were you able to install that SIS successfully?