[Q] XP cant install custom rom per cwm because of bootloop

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http://forum.xda-developers.com – Hi, i have my XP rooted per 1 click from Bin4ry , bootloader unlocked, busybox app installed. I tried to get CWM on the XP with the command promt und kernel.elf I works and i can enter cwm. Unforntunaly the phone then gets into bootloop and i have to flash the original rom per flashtool to get the xperia P working again. What am i doing wrong? I would like to install the Manav miui rom but i is impossible to me. When i get into cwm and try to flash the zip there i seems to work. Unfortunally the XP is after reboot stuck in bootloop. What iam doing wrong? It would be great if (HowTos)