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I think ive installed kitkat but want jelly bean back

Anonymous
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How do I reinstall jelly bean back on my s4 can anyone help please
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MI5
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You can't unless you don't care for your warranty.
Anyway, it shouldn't be necessary. If you're having problems do a factory reset.
http://community.o2.co.uk/t5/Android-Devices-Samsung-HTC-Sony/How-To-Reset-your-Samsung-after-a-Firm...
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)

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anticpated
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Unfortunately you would have to do an emergency firmware restore or completely reflash your handset.

 

Samsung Galaxy S10, Samsung Galaxy S21 Ultra
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anticpated
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Search for the guide although I'm pretty sure they all have this Samsung KNOX security enabled now. Without having a S4 next to me, it would be wrong to advise you any further.

Essentialy though you would need a previous Jellybean 4.3 ROM from Sammobile.com and ODIN to reflash the firmware in Download mode. Have a look for the ODIN guide on here.

 

Samsung Galaxy S10, Samsung Galaxy S21 Ultra
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jonsie
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MI5
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You can't unless you don't care for your warranty.
Anyway, it shouldn't be necessary. If you're having problems do a factory reset.
http://community.o2.co.uk/t5/Android-Devices-Samsung-HTC-Sony/How-To-Reset-your-Samsung-after-a-Firm...
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)
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Anonymous
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What problem are you having with kit kat ?
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Anonymous
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Hi.my phone just seems unresponsive it turns its self off if no buttons pressed for a while . Internet is really slow.ive started to hate my phone.
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Anonymous
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Have you done a factory reset that should sort it out
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jonsie
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anticpated
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Strictly speaking you shouldn't have to, as all the indicies and dalvik runtime cache data and so forth gets erased and refreshed during the processing a new build of Android. However doing a factory reset gives you a null point where you can isolate and update applications wherever needed.

 

Samsung Galaxy S10, Samsung Galaxy S21 Ultra
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