Tip & How-To about Cell Phones

How To Fix 1601, 1602, or 21 Error Codes During iPhone 3.1.2 or 3.1.3 Custom Firmware Restore


Are you trying to downgrade or restore your iPhone or iTouch from the official 3.1, 3.1.2 or 3.1.3 Firmware to a Custom Firmware and your iTunes displaying the following 1601, 1602, 16xx or 21 error codes? iH8sn0w has just released a utility named iREB (iTunes Restore Error Bypasser), which provides a workaround to fix these errors.
iREB is available for both Windows and MAC Operating systems. Tool runs on both iPhone & iPhone 3G with Firmware 3.1, 3.1.2, 3.1.3, and also on iPod touch 1G and 2G.
So here is the work around for 1601, 1602, 1604, 16xx or 1621 Error Codes…
New version of iREB is out for 3.1.2 Devices… If you’re upgraded to the latest firmware (3.1.2 or 3.1.3) you should use this download / tool for the errors you’re experiencing. New version has additional devices and more options available.
1. Download iH8sn0w’s iREB 3.1.2 archive for Windows or Mac.
2. Start iTunes and put your iPhone in Recovery Mode; to do so, hold Home and Power button in your iPhone simultaneously and release Power button after a while (10 seconds approx). Keep on holding Home button, till you see following error message appearing in iTunes stating.

3. Now close iTunes and start iREB, following interface will open.

4. Now select your plugged in device in iREB 3.1.2 and it will then show the White creen after few seconds. This happens fast so if you didn’t see it don’t worry… You will also hear sounds (maybe) like your iPhone is being plugged in and unplugged from your computer… That’s normal… The ih8sn0w.exe will crash… That’s normal, as long as you get a white screen…
5. NOTE: If you still don’t see the WHITE screen, you should do this… While the device is still plugged in and iREB running, put your device into the DFU mode. PRESS and HOLD both buttons on your iPhone for 12 Seconds and then release the POWER button (Located at the top of your Device) while still holding down the HOME button… Hold down the HOME button for 30 Seconds… (Yes 30 Seconds) until you get the WHITE Screen, the iTunes will come up with a message stating it found an iPhone in Recover Mode… At this point you can let go of the HOME button… you will be asked to restore this iPhone… and the iREB tool will crash
6. Now start iTunes again and select your device (iPhone/iPod) from iTunes DEVICES tab.
7. To restore original settings on your Apple device, press and hold left “OPTION” button on the keyboard (“SHIFT” button for Windows), iTunes will give you option for Upgrade and Restore, click on “Restore” option in the iTunes and then release the “OPTION/SHIFT” button. Select .ipsw file and restore it

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1 Answer

I would like to downgrade firmware on iPhone 3G from 4.0 to 3.1.1 Please help


There is no 3.1.1 firmware version available for the iPhone 3G. 3.1.1 is only for ipod touches. To downgrade to 3.1.2 (http://modmyi.com/forums/downloads/firmware/6/iphone-3g-3-1-2-32353/) or 3.1 (http://modmyi.com/forums/downloads/firmware/6/iphone-3g-3-1-32183/), download from either of the provided links, go into iTunes and to your iPhone tab, shift+click on restore for windows, or alt+click restore on mac, navigate to the downloaded file, and open it. Your phone will restore to the downloaded firmware.

Dec 21, 2010 | Apple iPhone 3G

1 Answer

I have 3g iphone, 4.1 firmware installed. How do I jailbrake the iphone. Thanks


you will have to downgrade the firmware as anything higher then 4.0.1 wont jailbreak at this time

goto the website http://www.felixbruns.de/iPod/firmware/
and download the selected firmware for the ipod touch model you have. if your unsure if the model / type you can goto http://www.felixbruns.de/iPod/firmware/#
and type in the last 3 numbers of your serial number to find out

if you want to downgrade or upgrade, choose the firmware you want to downgrade to, then go to itunes and shift-click on restore and choose the firmware you want to change to. this will restore your ipod touch

Sep 12, 2010 | Apple iPhone Smartphone

1 Answer

just bought itouch, why is the screen showing the usb icon and itunes icon


goto the website http://www.felixbruns.de/iPod/firmware/
and download the selected firmware for the ipod touch model you have. if your unsure if the model / type you can goto http://www.felixbruns.de/iPod/firmware/#
and type in the last 3 numbers of your serial number to find out

if you want to downgrade or upgrade, choose the firmware you want to downgrade to, then go to itunes and shift-click on restore and choose the firmware you want to change to. this will restore your ipod touch

Sep 09, 2010 | Audio Players & Recorders

1 Answer

Got unlocked iphone, tried to restore factory settings now its stuck on bitten pineapple...any help plz just got this phone?


Hi,
Here u can follow the steps

Step 1: Make sure you have downloaded the latest version of iTunes if you haven’t already. Download iTunes 8.2 from the link given below.
Step 2: Now connect your iPhone with your PC. You must connect it to a single usb port on the backside of your computer. Do not use any usb hub or the ports in the front as this could cause an error during update process.
Step 3: Start iTunes 8.2. Sync your iPhone with your PC so that iTunes backs-up all your important data including settings, apps, music, contacts and photos.
Step 4: You will now have to download a custom cooked firmware for your iPhone version (2G or 3G). I can’t post the download links for these files for the reasons you all know very well. Just Google “iPhone 2G Custom 3.0” (If you are using iPhone 2G) or “iPhone 3G Custom 3.0” (If you are using iPhone 3G) and use one of the torrent links to download the custom created .ipsw file.
Step 5: Once you have downloaded the required .ipsw file, Copy/Paste it into this location:
“C:\Users\[username]\AppData\Roaming\Apple Computer\iTunes\iPhone Software Updates\” (Windows 7)
“C:\Users\[username]\AppData\Roaming\Apple Computer\iTunes\iPhone Software Updates\” (Windows Vista)
“C:\Documents and Settings\[username]\Application Data\Apple Computer\iTunes\iPhone Software Update\” (Windows XP)
Step 6: Restart iTunes. You will now be prompted to install this firmware you just download. Just close this prompt dialog by clicking on “x” from the top right-most corner of the window.
capture.png
Step 7: Now you will have to restore your iPhone to this custom firmware 3.0 that you just downloaded. Click on your phone from the sidebar in iTunes to get to this screen as shown in the screenshot below:
capture2_thumb.png
Now press and hold left “Shift” button on the keyboard and then click on “Restore” (Not “Update) button in the iTunes and then release the “Shift” button.
2e_thumb.png
This will make iTunes prompt you to select the location for your downloaded custom firmware 3.0. Select the downloaded .ipsw file and click on “Open”.
Step 8: Now sit back and enjoy as iTunes does the rest for you. This will involve a series of automated steps some of which are highlighted below:
asd.pngafasf.pngggg.png
Don’t do anything silly at this point. Just wait while iTunes installs the new firmware 3.0 on your iPhone. Your iPhone screen at this point will be showing a progress bar indicating installation progress. After the installation is done, iPhone will restart automatically and you should now have a fully unlocked and jailbroken iPhone 2G. iPhone 3G on the hand will only be jailbroken, not unlocked. iPhone 3G users will have to wait for Dev-Team to release ultrasn0w on Cydia in order to unlock their phones.
Step 9: Once you are done with the unlocking and jailbreak process. You can now restore all your settings, apps, music, contacts and photos to the newly installed firmware version 3.0 by restoring the backup that you made in Step 3 from iTunes.
captsure_thumb.png
Feel free to ask me any question here should you run into any problem during the update process.
Disclaimer: This guide is for testing & educational purposes only. I’m not responsible for any loss of important data or malfunctioning of your iPhone.
Download Links:
Download iTunes 8.2
Download iPhone OS 3.0 Custom Firmware (iPhone 2G) [Screenshot]
Download iPhone OS 3.0 Custom Firmware (iPhone 3G) [Screenshot]

/**/ Thanks

Thiru

Jun 20, 2009 | Apple iPhone Smartphone

1 Answer

iPhone won't do anything!


Before you connect your iPhone or iTouch to iTunes.
Try and put the device into DFU Mode.
Plug your USB cord into your Device and Not into your computer.
Turn the Phone all the way off by holding the power button until the Red Bar appears and Slide it off..
Hold the "Home" Button Down for 5 seconds.
Then Push and Hold the "Power" Button while still holding the "Home" button and count to 7
Let go of the "Power" button while still holding the "Home" Button and Hold the Home button for approx 26 seconds.
The screen may or may not go blank with lines. No Worries!! now plug the USB into the computer with iTunes open. If the iphone is in DFU mode, iTunes will come up with a popup that says, "Itunes has detected an iPhone that is in recovery mode. Your must restore it"
Once this occurs, you can restore your device with any firmware by pressing "SHIFT" on your keyboard and "Clicking" Restore with your Mouse. Restore your device and let it mount to itunes.
If you are unlocking the device, I would suggest using "QuickPwn" you can get it HERE
You can download Apple iPhone Firmware HERE, when using quickpwn you will need to upgrade your firmware to 1,2_ 2.2_5G77...NOT 2.2.1
(TIP: Don't restore your iphone with custom firmware in iTunes. Restore with the original Firmware and Unlock or Jailbreak letting Quickpwn make the custom firmware....Also if you have a 3G do not ungrade in itunes to the 2.2.1 firmware, it changes the phone modem baseband and renders it "NOT" unlockable)

Feb 28, 2009 | Apple iPhone Smartphone

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