Data signal drops from time to time

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  • Updated 4 months ago
I'm having a wired issue with the mobile data on my phone (OnePlus 5T). The data signal (4G+/HSPA+ symbol on the signal bar) drops from time to time (one or two times every day), once the signal is gone I cannot use mobile data but normal phone call works just fine. I tried to turn the mobile data off, wait for few minutes and turn it back on, it didn't help. However, a simple reboot will fix the problem. Just for the reference, the mobile data for my T-Mobile SIM works just fine.
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Zikang Zhao

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Posted 4 months ago

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Paul Deschamps, Mobile Master

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Does the one plus 5t you have support ALL of Koodo's frequencies or are you only able to connect to a certain frequency Koodo uses.
What are the specific frequencies the model you have support?
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Zikang Zhao

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From OnePlus website:

LTE

Supports 3xCA
Supports 64QAM & 256QAM
Supports up to DL CAT 12 (600 Mbps)
UL CAT 13 (150 Mbps) depending on carrier support

Bands

FDD LTE: Band 1/2/3/4/5/7/8/12/17/18/19/20/25/26/28/29/30/66
TDD-LTE: Band 34/38/39/40/41
TD-SCDMA: Band 34/39
UMTS(WCDMA): Band 1/2/4/5/8
CDMA: BC0

GSM: 850/900/1800/1900 MHz
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Zikang Zhao

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I used to have a OnePlus 3, that phone worked perfectly fine on Koodo.
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Allan, Mobile Master

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Is your WiFi on when your data disconnects? It could be that your phone is picking up closely WiFi networks and therefore dropping your data connection.
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Zikang Zhao

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No, it has nothing to do with wifi.
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Paul Deschamps, Mobile Master

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It looks like it supports the frequencies. Are you in the same area or moving when this happens?
Also have you checked one plus forums to see if there's issues with the phones radios that have been reported there?
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Dinh, Mobile Master

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Hi Zikang,
I would also try to reset the network settings and see if it works. You mentioned it lost the signals at one place or at many locations? Have you observed it lost the signals where it was usually fine?
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BobTheElectrician

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Toggle the network mode between with and without LTE auto if you have such an available setting. LTE signals are often less reliable than 3G.

In a marginal reception area, I can sit and watch my bars oscillate between 1 and 4 if I enable LTE mode on a 3-year old T-Mobile Android phone using Koodo prepaid SIM in the US. The preferred roaming partner seems to be AT&T.

A flaky SIM might give you intermittent service. However, your T-Mobile SIM may be looking at different signal towers. It would definitely take at least one reboot to clear your Koodo connection for the T-Mobile to work well, and vice-versa.

You can check relative connection robustness either by going into the phone parameter settings, but it would be preferable to install Signal Strength from the Playstore.