[Xperia Arc Q&A, Help & Troubleshooting] SadCreper:
Hello guys; I had Xperia Arc branded by Orange in Poland.

I know they locking, blocking and doing a lot of stupid locks on phones and i heard only testpoint will solve problem with bootloader.

I upgrade firmware to ICS (my xperia arc 2011 series device didn't get official ICS) and rooted.

Now used s1tool and installed drivers before i unlocked my bootloader.

I got small "r" the it was unlocked.

2013-06-14 10:19:46 Welcome to S1 tool.

2013-06-14 10:19:46 That is small and crippled subset of SETOOL2 service tool.

2013-06-14 10:19:49

2013-06-14 10:19:49 DETACH USB CABLE FROM PHONE

2013-06-14 10:19:49 REMOVE BATTERY FROM PHONE

2013-06-14 10:19:49 ATTACH TESTPOINT

2013-06-14 10:19:49 PRESS "READY", THEN ATTACH USB CABLE TO PHONE

2013-06-14 10:19:49

2013-06-14 10:20:55 PROCESSING ...

2013-06-14 10:20:55 REMOVE TESTPOINT NOW, THEN PRESS "READY"

2013-06-14 10:20:55

2013-06-14 10:21:01

2013-06-14 10:21:01 TO CONNECT NEXT PHONES

2013-06-14 10:21:01 X10 Xperia,E10 Mini,E15 Xperia X8,U20 Mini Pro

2013-06-14 10:21:01 LT15 Xperia ARC,MT15 Xperia NEO,R800 Xperia PLAY

2013-06-14 10:21:01 PRESS AND HOLD "BACK" BUTTON...

2013-06-14 10:21:01

2013-06-14 10:21:01 ST18 Xperia RAY,ST15 Xperia Mini,SK17 Xperia Mini Pro

2013-06-14 10:21:01 PRESS AND HOLD "Volume Down" BUTTON...

2013-06-14 10:21:01

2013-06-14 10:21:01 PLEASE ATTACH TURNED OFF PHONE NOW

2013-06-14 10:21:01

2013-06-14 10:21:01

2013-06-14 10:21:01 RUNNING S1_LOADER VER "R4A062"

2013-06-14 10:21:01 LOADER AID: 0001

2013-06-14 10:21:03 FLASH ID: "0098/00B3"

2013-06-14 10:21:03 LOADER VERSION: "r4A069"

2013-06-14 10:21:03

2013-06-14 10:21:03

2013-06-14 10:21:03 SEMC SIMLOCK CERTIFICATE, PROCEEDING

2013-06-14 10:21:03 FINISHED

2013-06-14 10:21:03 Elapsed:74 secs.

Now "IDENTIFY" in s1tool says:

2013-06-14 11:13:34 Welcome to S1 tool.

2013-06-14 11:13:34 That is small and crippled subset of SETOOL2 service tool.

2013-06-14 11:13:36

2013-06-14 11:14:52 TO CONNECT NEXT PHONES

2013-06-14 11:14:52 X10 Xperia,E10 Mini,E15 Xperia X8,U20 Mini Pro

2013-06-14 11:14:52 LT15 Xperia ARC,MT15 Xperia NEO,R800 Xperia PLAY

2013-06-14 11:14:52 PRESS AND HOLD "BACK" BUTTON...

2013-06-14 11:14:52

2013-06-14 11:14:52 ST18 Xperia RAY,ST15 Xperia Mini,SK17 Xperia Mini Pro

2013-06-14 11:14:52 PRESS AND HOLD "Volume Down" BUTTON...

2013-06-14 11:14:52

2013-06-14 11:14:52 PLEASE ATTACH TURNED OFF PHONE NOW

2013-06-14 11:14:52

2013-06-14 11:15:03

2013-06-14 11:15:03 RUNNING S1_EROM VER "r9A021"

2013-06-14 11:15:03 SOFTWARE AID: 0001

2013-06-14 11:15:03 LOADER AID: 0001

2013-06-14 11:15:05 FLASH ID: "0098/00B3"

2013-06-14 11:15:05 LOADER VERSION: "r4A069"

2013-06-14 11:15:05

2013-06-14 11:15:05 MODEL (from GDFS): LT15i

2013-06-14 11:15:05 SOFTWARE VERSION: 1241-4324_4.1.B.0.431

2013-06-14 11:15:05 CUSTOM VERSION: 1247-1061_R1I

2013-06-14 11:15:05 FILESYSTEM VERSION: WORLD-1-8_4.1.B.0.431

2013-06-14 11:15:05 SERIAL NO: CB5A1FCVNR

2013-06-14 11:15:05

2013-06-14 11:15:05 SEMC SIMLOCK CERTIFICATE

2013-06-14 11:15:05 Elapsed:13 secs.

But i can't get into fastboot mode: holiding down Menu button and plugging cable and phone start boot as normal.

I had installed CWM with RecoverX, but i can't install Cyanogen mod 10.1 without fastboot.