My iphone 3gs 16gb Ran out of battery I have had it on charge for about 7/8 hrs but all i get is a lighted grey screen with nothing on it

The iPhone 3GS is partially supported by iOS 6. It is not supported by iOS 7 or subsequent versions of the operating system at all. iPhone 3GS 8 16 32 GB Specs iPhone 3GS A1303 MB715LL 2315 iPhone2 1...
Download iOS 6 1 6 for iPhone 3GS and iPod touch 4G

Did an Apple Store service this Phone?

Yes, You need to unlock your AT&T iPhone 3GS to use with T-Mobile. You can unlock your iPhone 3GS safer and easier through remote unlocking method. You can get the remote unlocking for an iPhone 3GS from www.unlocking4u.com/apple-iphone-3gs/rs6wp9/ at affordable cost. This site is a legit source to rely on accurate unlocking solutions.
Here are the steps for unlocking an iPhone 3GS through remote unlocking method,
1. Wait for us to send you an email saying your phone has been activated or remotely unlocked.
2. Install the latest version of iTunes.
3. Make sure your Apple iPhone 3GS phone software is updated to the latest version using the iTunes software.
4. Connect your Apple iPhone 3GS to iTunes with a NOT ACCEPTED SIM card.
5. Wait until iTunes detects your Apple iPhone 3GS.
6. Disconnect your Apple iPhone 3GS and reconnect it after 10 seconds.
7. Your Apple iPhone 3GS is now unlocked.

Hi, You can unlock your iPhone 3GS safer and easier through remote unlocking method. You can get the remote unlocking for an iPhone 3GS from www.unlocking4u.com/apple-iphone-3gs/rs6wp9/ at affordable cost. This process of unlocking is very simple.
Here are the steps for unlocking an iPhone 3GS through remote unlocking method,
1. Wait for us to send you an email saying your phone has been activated or remotely unlocked.
2. Install the latest version of iTunes.
3. Make sure your Apple iPhone 3GS phone software is updated to the latest version using the iTunes software.
4. Connect your Apple iPhone 3GS to iTunes with a NOT ACCEPTED SIM card.
5. Wait until iTunes detects your Apple iPhone 3GS.
6. Disconnect your Apple iPhone 3GS and reconnect it after 10 seconds.
7. Your Apple iPhone 3GS is now unlocked.

i have beeen trying to charge my iphone 3gs[16gb} for atleast 24hrs but it cant charge up to now

Just change it!

the main difference between the iphone 3g and iphone 3gs is the speed. but here are the specifications for both phones
weight: the 3gs is slightly heavier at 135g memory: iphone 3g only has two options an 8gb or a 16gb whereas for the iphone 3gs it has 8gb/16gb/32gb camera: the iphone 3g has 2mp camera that can only take pictures while the ihpne 3gs has a 3.15mp camera that can also capture videos cpu/processor: iphone 3g has ARM 11 412 MHz, PowerVR MBX-Lite graphics while the iphone 3gs has 600 MHz ARM Cortex A8 processor, PowerVR SGX535 GPU. So the 3gs is faster and it means less or no lag on apps
the 3gs has a digital compass
and the 3gs has a longer battery time than the 3g.
to summaarize, the iphone 3gs is faster, has longer battery life, and has a bigger memory (as it comes with a 32gb version).

restore to backup

sounds like your charger is bad..you need to replace it and if that doesnt help i would contact apple or your service provider for replacement options...apple is 1800myiphone

Specifications
* Size: 117.2 x 55.3 x 15.9 mm* *18.25 mm at camera area
* Weight: Approx. 150 g
* Memory: Up to 48GB (32 GB on-board memory, plus 16GB expansion via
microSD memory card slot)
* Display: 3.5 inch TFT with up to 16 million colors nHD 16:9 widescreen
(640×360 pixels)
* Talk time: Up to 320 min (3G), 400 min (GSM)
* Standby time: Up to 400 hrs (3G), 430 hrs (GSM)
* Video playback: Up to 4.5 hours (offline mode)
* Music playback: Up to 37 hours (offline mode)
* Image capture: Up to 5 megapixels (2584 x 1938) JPEG/EXIF (16.7
million/24-bit color).
* WiFi and HSDPA
* DVD quality video capture and 16:9 display

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