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k2dragon

macrumors member
Original poster
Apr 25, 2009
48
0
My t-mobile signal drops when my battery on iPhone 3G is below 30%. I get a Red battery low logo with a lighting bolt pointing toward the outlet. I reconnect but that image appears every few minutes when <30%. Whenever that image appears, my signal drops, without being aware, I dont receive any txt/phone calls. How do I disable that?

http://www.flickr.com/photos/31671179@N04/3480228673/
 
1. I doubt battery level have anything to do with your network connection, especially for the network that is not supported by iPhone.
2. How is disabling the alert going to help you solve the issue, if such issue does exist? Unless you think the alert itself is what caused the issue, which makes no sense.
 
1. I doubt battery level have anything to do with your network connection, especially for the network that is not supported by iPhone.
2. How is disabling the alert going to help you solve the issue, if such issue does exist? Unless you think the alert itself is what caused the issue, which makes no sense.

I am 100% positive that the alert causes this problem. I check my iPhone when its below 30% often, as soon as I see that image I click home button to unlock and signal is gone. The signal does come back and stays when the LCD is on.
I am assuming I am the only one with iPhone 3G Jailbroken (Quickpwn) and Unlocked (yellowsn0w) 2.2 02.28.00 FW that has this problem :-/
 
Battery sensor issue, low battery=signal drop

My t-mobile signal drops when my battery on iPhone 3G is below 30%. I get a Red battery low logo with a lighting bolt pointing toward the outlet. I turn on my phone LCD and see no signal, then airplane mode, then get signal back, then voicemail dot. But that image appears every few minutes when <30%. Whenever that image appears, I am unaware, I dont receive any txt/phone calls. I restored the iPhone using Pwnage, Quickpwn and nothing worked. My restore was also set as a "Set up as a new iPhone", without restoring my back-ups. The only application I installed was yellowsn0w, and my signal still dropped <30%. I have noticed that I am the only one with this problem. I had AT&T and did NOT have this issue. Please help....

http://www.flickr.com/photos/31671179@N04/3480228673/
 
Anyone with T-mobile SIM from 2004 on iPhone 3G?

I have iPhone 3G with yellowsn0w. I have posted before about this issue but no reply. One assumption I have is that it may be the old sim card making my connection drop when the battery is low. Anyone have the older sim card with this issue?

My previous posts:
https://forums.macrumors.com/threads/695391/
https://forums.macrumors.com/threads/692102/

Thanks!

edit: what is the probability of having an iPhone 3G and T-Mobile SIM card from 2004?
 
hmm, no help. My conclusion to this problem is that my sim card needs to be updated. I connected another sim (updated) and it showed me how many voicemail i had, my previous did not. it was just a red dot. I am still testing for signal drop... I am also replying to myself.
 
I have an older sim card from TMobile...back in 03-04 I think.

Works fine in my Jailbroken 2.2.1 Iphone 3g with gevey3g sim unlock.
 
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