Hi

I was trying to remove some of the contents in Cyndia.
But the iphone 4 went hang and I have to restart again.
Notably, mine was jailbroken under tether jailbreak 4.3.4.

After I restart using redsnow, it keep showing the apple sign and cant proceed to the home page.

Please advise. Thanks

Without knowing what you removed in Cydia, I can't say for certain, but if the phone is bootlooped the best bet is to restore and re-jailbreak. The only other option (not recommended as it will cause many problems) is to use redsn0w to re-install Cydia on the device -- but that will replace your installed package list and cause a lot of problems with downloading packages, etc.

I have the same problems, whenever I will open another application it will hang and automatically restart. Is it advisable to jaibreak it again?. In addition to my problem, I charge my phone, I guess 5x a day due to it's battery it easily drain the battery. What seems to be the problem of this?. I bought the phone 2 months ago.