Как только не пробовал, не получилось.но судя по логу понял что мой infinity не поддерживает(пока) MT6253.
Вот логи:
COM7 [VCP0] selected
Модуль v3.20
Модель: Autodetect 6228-6239 NAND
Проверка данных, ждите...
Action: reset settings ("format ffs") NAND
interface: BROM_DLL_v3.1016.00
соединение...
Аппарат должен быть выключен !
Нажмите и ДЕРЖИТЕ кнопку включения !
Connecting...
Booting...
Отпустите кнопку включения !
bootcode current/expected: 3.2/3.2
CPU: 6253:8A02:8A00
status: FF
bbchip bl ver: FE
NOR flash id[00C1]: 00EC:240400000000 [SAMSUNG] K5N2833ATB
chip size: 16Mb
otp status/size: S_DA_NOR_OTP_NOT_SUPPORT/00000000
NAND flash chip: not installed
internal RAM size: 00020000
external RAM: S_DA_RAM_ERROR
Готов
Set baudrate (921600)...
Готов
interesting cpu type found: 6253:8A02:8A00
ram test...
testing...
ram test passed
===> detect existing firmware structure...
detect ffs...
адрес/размер ffs: 00000000/00000000
detect sec ro...
detect custom parameters...
detect project-id...
project-id: MAUI.09AW0936MP_SLIM.V4.F1
detect NOR info...
number of areas/bytes to read: 1:00040000
reading (HW_STORAGE_NOR)...
TCL-ID detection...
TCL-ID detection done
startup code area #1 detection...
startup code area #1 detection done
rom info ver: 07
sw version: E806L_PXHT_LANG3_PCB01_GPRS_MT6253_S00.E806_PXHT_A REA3.01.1.BIN
project-id: MAUI.09AW0936MP_SLIM.V4.F1, 00000000
code offset: 00000000
ffs offset/size [02]: 00E00000/00200000
rom info structure: 2nd [standard] type
TCL-ID is absent
===> Готов
====================
New firmware detected (v.3.20, database date: 26.07.2010):
E806L_PXHT_LANG3_PCB01_GPRS_MT6253_S00.E806_PXHT_A REA3.01.1.BIN

This firmware is missing in support area. If this phone is good and working:

- download latest software from support area and try again, probably this firmware already supported in latest software
- make "Читать full flash" operation
- send flash backup files to support: mt62xx@gmail.com or upload files to http://rapidshare.com or http://4shared.com
- include in your e-mail full text from phone back label (phone name etc.)
====================
ошибка: can not format: HW_STORAGE_NANDis not present
Disconnect...
Готов
Закончено, потребовалось времени: 53 sec
Отключите/подключите батарею !