how to unlock ericson T-20 - GSM-Forum

xialandia · 02-03-2001, 02:39

any idea how to unlock ericson t-20?
conector is similar that t-28 but i don't know if pins is iqual.

thanks

Lead · 02-03-2001, 20:58

In my opinion, the pinout is the same -- why to change good thing? To test it, start Hyperterminal at 115200Bd while having your T20 connected to the cable (and cable to the computer, of course - hehe), and shortly press the NO button on the phone. If it starts to write meaningful messages to your terminal, then the pinout is the same.

How to unlock such a phone? I think it will be more difficult than with the former types.
Just look in the Engineering menu and you'll see that there appeared a new item, some "OTP SECURITY", or something like that... OTP means One-Time Programmable.
So I think the protection is MUCH stronger.

The conclusion is to wait for guys like Zulea to develop new unlocking methods and afterwards for some guy like Dejan to give those methods to the public for free...

Best regards, Lead.

Lead · 02-03-2001, 21:01

One more note:

They might add the term "OTP SECURITY" only for some psychological purposes...
Who knows?

But really, WHO KNOWS?

02-03-2001, 02:39	#1 (permalink)
xialandia Junior Member Join Date: Jan 2001 Posts: 7 Member: 3130 Status: Offline Thanks Meter: 0	how to unlock ericson T-20 any idea how to unlock ericson t-20? conector is similar that t-28 but i don't know if pins is iqual. thanks

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02-03-2001, 20:58	#2 (permalink)
Lead No Life Poster Join Date: Aug 2008 Age: 52 Posts: 3,292 Member: 1841 Status: Offline Thanks Meter: 469	In my opinion, the pinout is the same -- why to change good thing? To test it, start Hyperterminal at 115200Bd while having your T20 connected to the cable (and cable to the computer, of course - hehe), and shortly press the NO button on the phone. If it starts to write meaningful messages to your terminal, then the pinout is the same. How to unlock such a phone? I think it will be more difficult than with the former types. Just look in the Engineering menu and you'll see that there appeared a new item, some "OTP SECURITY", or something like that... OTP means One-Time Programmable. So I think the protection is MUCH stronger. The conclusion is to wait for guys like Zulea to develop new unlocking methods and afterwards for some guy like Dejan to give those methods to the public for free... Best regards, Lead.

02-03-2001, 21:01	#3 (permalink)
Lead No Life Poster Join Date: Aug 2008 Age: 52 Posts: 3,292 Member: 1841 Status: Offline Thanks Meter: 469	One more note: They might add the term "OTP SECURITY" only for some psychological purposes... Who knows? But really, WHO KNOWS?