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Explanation of how anySIM 1.1 works #6

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1.
2.
3.

What is the expected output? What do you see instead?

What version of the product are you using? On what operating system?

Please provide any additional information below.

Original issue reported on code.google.com by bentfing...@gmail.com on 23 Oct 2007 at 4:50

GoogleCodeExporter commented 9 years ago 
This is bound to happen. Zibri and co please explain how anySIM 1.1 works. I
understand that they belong to dev team and it's your right if you guys choose 
not to
explain.

Original comment by bentfing...@gmail.com on 23 Oct 2007 at 4:51

GoogleCodeExporter commented 9 years ago 
Fairly simple explanation:

anySIM 1.1 doesn't change the seczone on your phone like anySIM 1.0 and 
iPhoneSIMFree
do.  Instead, it modifies the phone's firmware to skip the lock check and work 
with
SIM's from any provider.

In the older anySIM and current IPSF releases, they attempt to set the phone's 
lock
status to unlocked.  With the new anySIM release, they don't bother trying to 
set the
lock status and instead modify the code on the phone to not care about the lock
status at all.

None of these are doing a "proper" unlock where you somehow determine the 
correct
unlock code and pass it to the phone.  All of them have the potential (or are 
known)
to cause problems when the phone is upgraded.

The current anySIM release will definitely NOT remain unlocked after a firmware
update since all of its changes would be overwritten by the new version.  It is
however probably unlikely to brick the phone unless Apple specifically checks 
for its
presence in a future release.

Older anySIM, as we know, caused corruption in the seczone area of the phone 
and made
iBricks.

IPSF has so far survived upgrades, but it depends on a bug in the current phone
firmware.  Apple did NOT fix this bug from 1.0.2 to 1.1.1, and so anySIM phones
didn't brick.  If Apple were to patch that bug, odds are IPSF phones would 
brick. 
Additionally, while the corruption done in earlier anySIM was to an area of the 
phone
which is identical across phones, IPSF causes damage to an area which is known 
to
differ between phones.  That is, while anySIM's damage could be undone, IPSF's 
is
permanent unless you or IPSF has a backup of what was changed.

Original comment by pendorbo...@gmail.com on 23 Oct 2007 at 5:53

GoogleCodeExporter commented 9 years ago 
See wiki

Original comment by czim...@gmail.com on 26 Oct 2007 at 3:09