This seems to have solved the bootloop issues for me on my arc s. When the phone first booted up the miui home launcher crashed but after another reboot the phone worked fine.bootloop fix for LT18i (xperia arc s - hopefully for others also)
i did this..
full wipe(everything, wipe-factory/cache/data/system/dalvik)
wipe data/factory reset again..
i'll post my feedback later..
Just flash as usual with CLK or MAGDLR
misc ya 1M
recovery rrecov|ro|nospr 7M recovery-raw.img
boot yboot|ro 5M
system ya 280M
cache ya 10M
userdata ya|asize|hr allsize
Redownload and check md5 and partition sizes. I'm running it on my gf's device with zero issues (clk NAND install with pheonix's native DataOnExt).I can't install on my hd2.
I have a error with the kernel and it don't boot.
i use clk and magdrl, same problem.( clk 126.96.36.199 and magdrl 1.13 )
Tried updating the latest MIUI ROM(2.12.14) on my Sensation XE this morning and i am struck in the MIUI startup screen. I have checked the MD5 sum of the file and it matches with Mark's details exactly. I had previously downloaded the same ROM from MIUI china website. I have the same problem with these 2 files.
I am reverting back to the older version now.