PDA

View Full Version : quéstion about com and usb?


**RABIOS-TE@M**
10-14-2007, 21:03
hi to all
i have one quéstion ?
i see in a lot of soft work with COM ! not USB because what??

and if it possible to build soft for unlock work with usb for example samsung or sony eri...)


thx

Barabaka
10-14-2007, 21:15
hi to all
i have one quéstion ?
i see in a lot of soft work with COM ! not USB because what??

and if it possible to build soft for unlock work with usb for example samsung or sony eri...)


thx

You are wrong. There are many solution work with mobs through usb. Motorola, Siemens, Nokia, LG, etc.
In modern mobs sometime very dificult found COM.

bkerler
10-14-2007, 21:19
Mainly due to timing problems. Old phones did not have an integrated usb chipset (ftdi or anything else). So, using a USB cable, Serial Communication had to be emulated. This emulation does not (always) offer bitbanging, thus cannot be used. Newer phones already have integrated usb chipsets, so USB is preferred, newer ftdi chipsets also support bitbanging.

Cya,

Viper BJK

**RABIOS-TE@M**
10-14-2007, 22:36
You are wrong. There are many solution work with mobs through usb. Motorola, Siemens, Nokia, LG, etc.
In modern mobs sometime very dificult found COM.


with MOTOROLA you are right but with NOKIA LG SIEMEN S i think not


S.P soft for unlocking not for application!

**RABIOS-TE@M**
10-14-2007, 22:38
Mainly due to timing problems. Old phones did not have an integrated usb chipset (ftdi or anything else). So, using a USB cable, Serial Communication had to be emulated. This emulation does not (always) offer bitbanging, thus cannot be used. Newer phones already have integrated usb chipsets, so USB is preferred, newer ftdi chipsets also support bitbanging.

Cya,

Viper BJK

yes you are right but can for example chek usb modem in MSL ?

bkerler
10-14-2007, 23:20
yes you are right but can for example chek usb modem in MSL ?

As there are different usb chipsets in usage, there is no common way to check via port communication if the mobile got one. Not sure, but I remember ftdi has some diagnosis implementation. But some vendors implement software emulation of usb. Nowadays, almost every new mobile has a usb chipset integrated.

I hope this answers your question.

Cya,

Viper BJK

**RABIOS-TE@M**
10-14-2007, 23:37
@bkerler thx for your reply