The best replacement for 4.2.1 is 4.3.

The best alternatives to 4.2.1 are rated as following:
★★★★★  4.3
★★★★  4.2.2
★★★★  4.1
★★  4.3 android
★★  4.2
★  android 4.2.2
★  4.0
★  3.1.3
★  ios 4.1
  redsnow
  4.3.3

Your alternative for 4.2.1 is not listed? Suggest!
Speaking about 4.2.1, one probably shouldn't forget about baseband.

Other search terms related to 4.2.1 and their ratings are:
★★★★★ baseband
★★★★ redsn0w
★ cydia
★ greenpoison
You have in mind a companion for 4.2.1 and it is not yet here? Propose!



Google Trends

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4.2.1
4.3
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