T715a ongoing problem & mystery

Hello,


after unlocking but b4 flashing my T715a - it was working perfectly, except of course that branding is horrible - I HAD to be able to remove the Vodafone (Australia) "I'm Live" key, (could incur unwanted charges!)
I have the phone for use on the TIM network here in Brasil, so I used these with a2uploader:
T715_R1GA026_MAIN_GENERIC_AM_RED53
T715_R1GA026_FS_AMERICA_RED53
&
T715_1231-4509_R5A_Customized_Generic_LAM__b_


Now I have 2 irritating issues:
- Sometimes, but rarely, I have Network coverage, but mostly none or far weaker than usual.
- Does not recognise my SD card, (wants to reformat), and this is very irritating because both things worked perfectly (SD card read in full without reformatting), yes here with phone in other country, like I said - it was all good AFTER unlock but BEFORE unbranding/ flashing, in the same location with same sim cards, etc, etc.
Please, simple fixes like reinstalling, trying other firmwares, etc, have been tried, a lot.


This problem has occurred to others and there are some discussions online, that go nowhere. ONE suggestion was that the T715A needs different firmware than the T715, (different ranges in network?) - But not even Sony differentiates between the 2 for software, AND finally - Sony Updates all insist I have latest software.
Thanks for any help.
PS. latest firmware flash log:


03/11/2012 16:43:18 ChipID:E900,EMP protocol:0401
03/11/2012 16:43:18 BOOTROM MODE DETECTED
03/11/2012 16:43:21 OTP LOCKED:1 CID:53 PAF:1 IMEI:35662803250429 CERT:RED
03/11/2012 16:43:22 LDR:2009-04-21 18:30 1202-0420_DB3210_CS_LOADER_APP_SDRAM_R2A081
03/11/2012 16:43:22 LDR CAPS:SYSTEM FLASH GDFS FILESYSTEM TA
03/11/2012 16:43:23 LDR:2009-04-21 18:29 1202-0421_DB3210_CS_LOADER_ACC_SDRAM_R2A081
03/11/2012 16:43:23 LDR CAPS:SYSTEM FLASH SIGNATURE AUTH
03/11/2012 16:43:23 writing "C:\Users\DRA\Desktop\T715_R1GA026_MAIN_GENERIC_AM _RED53\T715_R1GA026_MAIN_GENERIC_AM_RED53.mbn"
03/11/2012 16:43:23 ALLOWED DOMAINS:BLUE BROWN RED
03/11/2012 16:43:23 MAXIMUM CID:53
03/11/2012 16:43:24 Will flash 803 blocks...
03/11/2012 16:46:35 ssw file accepted
03/11/2012 16:46:35 writing "C:\Users\DRA\Desktop\T715_R1GA026_FS_AMERICA_RED5 3\T715_R1GA026_FS_AMERICA_RED53.fbn"
03/11/2012 16:46:36 ALLOWED DOMAINS:BLUE BROWN RED
03/11/2012 16:46:36 MAXIMUM CID:53
03/11/2012 16:46:36 Will flash 1290 blocks...
03/11/2012 16:52:01 ssw file accepted
03/11/2012 16:52:04 Writing package "C:\Users\DRA\Desktop\T715_1231-4509_R5A_Customized_Generic_LAM__b_.zip"...
03/11/2012 16:52:04 /tpa/preset/custom/CONTENT_DOWNLOAD_HOOK.itm
03/11/2012 16:52:04 /tpa/preset/custom/Customize.xml
03/11/2012 16:52:05 /tpa/preset/custom/FM_PICTURES_HOOK_3.itm
03/11/2012 16:52:05 /tpa/preset/custom/FM_SOUNDS_HOOK_3.itm
03/11/2012 16:52:05 /tpa/preset/custom/FM_THEMES_HOOK_3.itm
03/11/2012 16:52:05 /tpa/preset/custom/FM_VIDEOS_HOOK_3.itm
03/11/2012 16:52:05 /tpa/preset/custom/GAMES_HOOK_3.itm
03/11/2012 16:52:05 /tpa/preset/custom/MC_MUSIC_HOOK_3.itm
03/11/2012 16:52:06 /tpa/preset/custom/MC_PHOTO_HOOK_1.itm
03/11/2012 16:52:06 /tpa/preset/custom/MC_PHOTO_HOOK_3.itm
03/11/2012 16:52:06 /tpa/preset/custom/MC_VIDEO_HOOK_3.itm
03/11/2012 16:52:06 /tpa/preset/custom/MESSAGES_HOOK_1.itm
03/11/2012 16:52:06 /tpa/preset/custom/ORG_APPLICATIONS_HOOK_3.itm
03/11/2012 16:52:06 /tpa/preset/custom/preloaded_config.xml
03/11/2012 16:52:07 /tpa/preset/custom/Security certificate_LAM Global_24806.2.cer
03/11/2012 16:52:07 /tpa/preset/custom/SETT_RINGTONE_HOOK_1.itm
03/11/2012 16:52:07 /tpa/preset/custom/SETT_SCREENSAVER_HOOK_1.itm
03/11/2012 16:52:08 /tpa/preset/custom/SETT_STARTSHOW_HOOK_1.itm
03/11/2012 16:52:08 /tpa/preset/custom/SETT_WALLPAPER_HOOK_1.itm
03/11/2012 16:52:08 [fsChDir] err:000E
03/11/2012 16:52:08 Creating "/tpa/preset/custom/java/"
03/11/2012 16:52:08 /tpa/preset/custom/java/Facebook_homescreen.jad
03/11/2012 16:52:08 /tpa/preset/custom/java/Facebook_homescreen.jar
03/11/2012 16:52:09 /tpa/preset/custom/java/Facebook_Launcher_1.jad
03/11/2012 16:52:09 /tpa/preset/custom/java/Facebook_Launcher_1.jar
03/11/2012 16:52:10 /tpa/preset/custom/java/Facebook_Launcher_2.jad
03/11/2012 16:52:10 /tpa/preset/custom/java/Facebook_Launcher_2.jar
03/11/2012 16:52:10 /tpa/preset/custom/java/Facebook_main.jad
03/11/2012 16:52:10 /tpa/preset/custom/java/Facebook_main.jar
03/11/2012 16:52:12 /tpa/preset/custom/java/FerrariGT_DEMO_JB_SonyEricssonB117_CSBP_105.jad
03/11/2012 16:52:12 /tpa/preset/custom/java/FerrariGT_DEMO_JB_SonyEricssonB117_CSBP_105.jar
03/11/2012 16:52:17 /tpa/preset/custom/java/HSManager.jad
03/11/2012 16:52:18 /tpa/preset/custom/java/HSManager.jar
03/11/2012 16:52:18 /tpa/preset/custom/java/Twitter.jad
03/11/2012 16:52:18 /tpa/preset/custom/java/Twitter.jar
03/11/2012 16:52:19 /tpa/preset/custom/java/TwitterClient.jad
03/11/2012 16:52:19 /tpa/preset/custom/java/TwitterClient.jar
03/11/2012 16:52:20 /tpa/preset/custom/java/YouTubeUploader.jad
03/11/2012 16:52:20 /tpa/preset/custom/java/YouTubeUploader.jar
03/11/2012 16:52:21 Phone detached
03/11/2012 16:52:21 Elapsed:612 secs.