[Liquid S100 General] thaikinh:
When I tried to upgrade from 2.1 to the leaked ROM 2.2, after the Acer download tool completed several steps, it hanged somewhere and said "not connected".

Now I am still able to boot in recovery mode as you mentioned (Android boy with caution), but I repeat the same flashing procedure for many times but it still stops after completing the AMSS and say my phone is not connected, no matter what version of Android I flash (1.6, 2.1 or 2.2)

Please help, my liquid now is bricked !!!

Acer download tool's log file is hereunder

//=======================================================//
//================== Debug Log Start!! ==================//
//=======================================================//
[Info] : Program version is : ACER Download Tool [Intra][Single] v3.100 (2009.10.27)
[Info] : Merged file is : D:\AcerLiquid\Donut\Acer_Liquid_2.000.16_EMEA_GEN1.bin

[Info] : Port for Backup is : COM8

-----------------------------------------------------------
---------------- [Info] : Backup Start !! -----------------
-----------------------------------------------------------
[Backup] : Pass IsPhoneConnected()
[Backup] : Pass UnLockSpc()
[Backup] : Pass EnterIntoOfflineDigital()
[Backup] : In BackupNvItemProcess()
[Backup] : .csv file in : D:\AcerLiquid\A1_DL_Tool_[Intra][Single]_v3.100_20091027\OursNvTable_ReadyToUse.csv
[Backup] : Backup ForLoop is finished!
[Backup] : IMEI Number is : 353509030606837
[Backup] : xml file was written!!, Filename is : 353509030606837_0.xml
[Backup] : xml file was copied into A1_QCN directory !!
[Backup] : Path and filename is : C:\A1_QCN\353509030606837_0_0908_2104_07.xml
[Backup] : xml file was also copied into : C:\Program Files\QCNFILES
[Backup] : Path and filename is : C:\Program Files\QCNFILES\353509030606837_2010_0908_2104_07.xml
[Backup] : Backup Success !!
-----------------------------------------------------------
--------------- [Info] : Backup Finished!! ----------------
-----------------------------------------------------------

[Info] : Change mode Start! (OS to AMSS Download mode)
[Info] : Port is Open
[Info] : Port is Disposed
[Info] : Get AMSS Download Port Start!
[AMSS Port] : WaitTime is : 15
[AMSS Port] : Old vid and pid was NOT Found...
[AMSS Port] : acer vid and pid was Found
[AMSS Port] : AMSS Port is : COM7
[Info] : Port for AMSS Download is : COM7
[Info] : Beginning to Open AMSS COM Port : UsbConnect()

-----------------------------------------------------------
--------------- [Info] : Hex file Start !! ----------------
-----------------------------------------------------------
[Hex] : Receiver thread is ready !
[Hex] : Transfer thread is ready !
[AMSS Port] : WaitTime is : 15
[AMSS Port] : Old vid and pid was NOT Found...
[AMSS Port] : acer vid and pid was Found
[AMSS Port] : AMSS Port is : COM7
-----------------------------------------------------------
------------- [Info] : Hex file Finished !! ---------------
-----------------------------------------------------------

-----------------------------------------------------------
---------------- [Info] : AMSS Start !! ------------------
-----------------------------------------------------------
[AMSS] : AMSS Receiver Ready !
[AMSS] : No matter the partition table is the same or diff, Restoration is always needed !
[AMSS] : AMSS Start !
-----------------------------------------------------------
--------------- [Info] : AMSS Finished !! -----------------
-----------------------------------------------------------

[Info] : Change mode Start! (AMSS Download to Fastboot mode)
[Info] : Command is ready. (AMSS Download to Fastboot mode)
[Info] : Close AMSS com port