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UMobile does not use Band 20 = 800MHz. Only YES uses Band 20. Khuan0813's problem is likely due to the following: ...

Eg the Oppo A5 2020 and A9 2020 do not support LTE Band 7 = 2600MHz, the main 4G LTE frequency used by UMobile. ....... https://www.devicespecifications.com/en/model/6507521b
https://www.devicespecifications.com/en/model/dd36521a

So, we need to check the specifications of phones to be celco-compatible before buying them or before subscribing to celco.
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Yes, the data-"unlimited" prepaid GX30 PHONE plan is limited to 3Mbps only. Video-streaming is limited to 720p/1.5Mbps(before Dec 2019, was limited to SD/480p/0.8Mbps). Throttling to 0.5Mbps will occur after exceeding 100GB of data per month = can still read news and video-stream at 360p or 240p. P2P/torrenting is also throttled to 0.6Mbps.

Yes, they can detect, especially if you use about 100GB of data per month. They use Deep Packet Inspection to detect. Once detected, they may throttle, disconnect, terminate, etc the T&C/law-breaking subscriber.
....... In USA, the celcos are not allowed to do DPI on their subscribers.
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The police will never reveal all the methods they use to catch thieves. So, we can only agak2 from previous reports by illegal subscribers about how UMobile detects and catches illegal subscribers of its affordable "unlimited" 4G phone plans. Best to not be an illegal subscriber or abuser eg use modded or unmodded 4G modems, the Pdanet+ app, etc.

If still stubborn and use illegal methods, then should stay below 30GB of data per month to lessen the chance of being DPI by UMobile to near zero - it is not, use below 100GB to stay undetected. If use 50GB per month, the illegal subscriber may still get DPI by UMobile since data consumption by subscribers can fluctuate month-to-month, ie assuming UMobile only has the manpower to DPI the top 2% data-consumers every month - ie out of about 6 million subscribers in Malaysia = DPI about 120k subscribers every month.

A few smart illegal subscribers only use the Pdanet+ app, that bypasses the hotspot limit, occasionally, ie not all the time, and stay below 30GB of data consumption per month = they remained undetected by UMobile for years. The same for modded or unmodded 4G modems - they even use a SIM-adapter to easily swap the SIM-card between phone and modem.

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P S - On my postpaid "unlimited" GX50 phone plan, I use about 70GB of data per month = cannot be an illegal subscriber.
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Normally, web-surfers just trust and rely on the video-streaming website to offer whatever maximum video resolution it has and rely on whatever maximum video resolution is supported by their device and by their ISP, eg Youtube mostly offers video resolution up to 1080p, ie from 144p, 240p, 360p, 480p and 720p, and the affordable UMobile GX30/50 phone plans only allow up to 720p/HD/1.5Mbps video-streaming(=  without any buffering).
....... This is what I do, ie just trust and rely on the video-streaming website and confirmed by my own eyes, eg 720p videos on my Android device is much sharper and clearer than 360p.

If you want to check whether a website is offering real 1080p or 4k/2160p, there should be tools/programs/apps available for you to do that.

Other information ....... https://www.guidingtech.com/check-video-res...indows-android/

https://www.howtogeek.com/428193/are-you-wa...es-how-to-tell/ - Are You Watching 4K Content? Here’s How to Tell - Andrew Heinzman - Updated July 19, 2019
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GX38 prepaid on the way too

I don’t see it on the Umobile app yet

Oh they actually did that?

Hi , i am thinking of changing my existing mobile plan to the new Umobile GX68.
Can someone provide some user experience like how is the speed of the data or is the data extremely slow in some specific area and so on.

Based on some 4G sites i observed, one cell ad having 400 users.
We have 3 sectors per site, 4 layers(900/18/21/26) per sector = 4800 users

5G need to cater more users with same coverage or more sites within an enodeB. Sommore we have whole users from all operator using the gNodeB, so a gNodeB need to cater 20k users at least , perhaps there has more layer than 4G enodeB.

https://www.soyacincau.com/2020/02/15/u-mob...obox=1581755984

Umobile denies it and U Mobile has highlighted that the FUP for GX30 and GX50 have been removed.

Even if UMobile remove the FUP limit, once you use more than 200gb no matter what plan you are and no matter you use it in legal way, umobile still will initiate banhammer

Digi infinite (80/100) can download for more than 500gb (My relative have 80 with rebate 30 permanent)
Digi infinite (150) can download for more than 2tb ( I tried that)

Maxis One Prime can still download after 1tb of usage (with vpn)

Digi infinite (80/100) can download for more than 500gb (My relative have 80 with rebate 30 permanent)
Digi infinite (150) can download for more than 2tb ( I tried that)

Maxis One Prime can still download after 1tb of usage (with vpn)

wew seems after hujan line also become slow lol

why dont u upgrade to gx38?

Ipoh have high end and high quality towers u know

I was using the P99 so my speed was already max speed before this. Though how often you can actually get above 5mbps is a completely different story. But yeah the GX68 plan speed is basically the same as the P99 speed.
On P99 plan and also the GX68 plan, YouTube download speed seems to  be limited to 200kbps from my phones built-in network speed indicator and usually I just play it at 480p. Definitely not fast enough for 1080p but I remember sometimes 720p is playable and sometimes it's not.

so sad hearing this.because the only plan to tag with flagship device is p99 and p139. if p99 can only stream 480p youtube then for what they bundle flagship like samsung galaxy s20 in a package wasting the phone capablities