Re: New phone discovery: Sony Ericsson J120 (and J110)

2023-12-14 Thread Vadim Yanitskiy
Hello FreeCalypso community, out of the curiosity, I ordered a Sony Ericsson J110 and yesterday also took it apart to see how different it is from J120. The only obvious difference is the lack of an IC below the SIM socket: https://people.osmocom.org/fixeria/dump/se_j110i/IMG_1260.JPG The

Re: New phone discovery: Sony Ericsson J120

2023-12-08 Thread Mychaela Falconia
Hello FC community, As Vadim has been experimenting further with Sony Ericsson J120 and K2x0 phones, uncovering more of their quirks, I couldn't shake the feeling that SE J120 seemed familiar, that I had seen something very similar before. So I took a closer look at SE J120 flash dumps (provided

Re: New phone discovery: Sony Ericsson J120

2023-12-01 Thread Mychaela Falconia
Hi Vadim, > Today I took the phone apart and made a few photos of the PCB. Here is > the best one of them, uploaded to Osmocom's Redmine: > > https://osmocom.org/attachments/7155 > https://osmocom.org/attachments/download/7155/SE-J120i-PCB.jpg Thank you for this photo, it is very clear! > *

Re: New phone discovery: Sony Ericsson J120

2023-12-01 Thread Vadim Yanitskiy
Hi Mychaela and community, On 30.11.2023 04:58, Mychaela Falconia wrote: However, I now have to revise that hypothesis - my current working hypothesis is that the swear block is, after all, fully defunct code, totally dead. My rationale: the portion of the firmware we are looking at here is

New phone discovery: Sony Ericsson J120

2023-11-29 Thread Mychaela Falconia
Hello FreeCalypso community, We have another "new" phone discovery: Sony Ericsson J120 family. Like other SE phones of that era, the lowercase suffix after the number indicates GSM frequency bands: J120i is the version with 900+1800 MHz bands, and presumably there was also J120a with 85