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The Xiaomi Redmi Note 9S is a mid-range smartphone by Xiaomi released March 2020. It has a 6.67" IPS LCD display, a 48 MP main camera, a 5020 mAh battery, and runs on a Qualcomm SM7125 Snapdragon 720G.

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Why does my signal change from 4g to 3g then back after 1-3hr timings

i had a redmi 8 before this note 9s and i have been getting this issue for months now. it especially affects my gaming as i use the phone as a hotspot since home wifi gets congested. it would change to 3g out of no where and cause me to dc in online matches. then it takes 2min to go back to 4g. so i always manually change to back to 4g before i take too long offline. any fixes or is it related to my 4g provider? country is uganda and provider is Airtel

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Hi @manyord,

Can you try another device connected to the same service provider and see if the same problem occurs?

At least doing this will prove whether it is the provider or your Note 9s that is the problem.

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ok i will do so at night where it happens the most. currently 5pm for me. will update by midnight

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Hello @jayeff so it appears to be happening on both phones so it could be my provider then? its been many months with this going on sadly

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@manyord

It may be that now there are more users in your area that are connected to the same provider. As the bandwidth becomes more crowded it may be that you're dropped back to 3G just to maintain some sort of data speed.

If you know someone who lives nearby who uses a different provider, ask them if they have the same problem with their network.

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This isn't uncommon actually, whenever your phone doesn't have a strong cell signal it will automatically go to whatever is below so for isntance 4g-3g whenever your phone loses the strong 4g signal it automatically drops to 3g in order to maintain connection, if the times are consistent it could be because a busy time of the day or just simply the bandwidth from gaming.

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ya it could be that though i always have full bars on 4g and usually i manually change it back to 4g the moment it dips, so it ends up being full bars again. ya could just be the congestion is high in my area. rip

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What do you mean by manually change it back?

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Manually as i go to settings and switch prefered to 3g then 4g quickly

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U where the place has least signal of 4g and high signal of 3g network, that's the cause to cell automatically switch to 3g, if u want 4g signal over there u can use *#*#4636#*#* code in dialpad then select preferred network type to lte , but sometimes this cause u can't make call through network if ur provider doesn't support volte call, support volte call on such area have no problem, your cell phone always touch with 4g network

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Hi, i already tried that method last year and usually instead if switching to 3g, it goes blank and when i trt using ussd codes it fails on 4g, so it seems to be my provider or phones network compatibility with different bands

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Manyord estará eternamente agradecido.
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