Ios 4.2.1 comes as a universal firmware for iphone 4, 3gs, 3g, ipad, ipod touch 4g, 3g, 2g. to install ios 4.2.1 on your device, connect your iphone/ipod touch/ipad to itunes 10.1, new firmware availability message will appear then hit the “download and install” button.. Question: q: update iphone 3g ios 4.2.1 to later version i have just acquired an iphone but none of the apps i am interested in will run on the installed ios 4.2.1 installed. the model number is a1241, 8gb.. How to unlock iphone 3g/3gs on ios 4.2.1 firmware or 4.2 firmware using ultrasn0w and redsn0w 0.9.6b5 read the video description! redsn0w 0.9.6b5 download link:.
Sorry ken, you must backup your iphone apps by syncing them with itunes before you may upgrade to ios 4.2.1. also note that in-order to upgrade to ios 4.2.1, you must have ios 4.2.1 shsh blobs saved in cydia.. Finally ios 4.2.1 is out, after much anticipation and await. this firmware update brings some multitasking, folders, gameplay to ipad and airplay, airtunes, free find my iphone service (for iphone 4, ipod touch 4g, ipad) for all ios compatible idevices.. The next step is to download the appropriate firmware for your device. if you followed the rest of the guide, clicking on the download link will download the firmware that’s right for you. this download may take a bit of time. once you have your firmware, it’s time to jailbreak..
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