Sprint Franklin R850 turns off by itself

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1 week 6 days ago #41116 by peterquinn
So I have home internet via my house-mate's Franklin R850 (Sprint hot spot device). The internet gets disconnected very often - random, automatic disconnects.

I'll be browsing on my laptop, and suddenly there's no internet connection. I go look at the R850, and it has turned off on its own. (It has the battery removed, it's plugged into a wall outlet, so then I have to turn it on by pressing the ON button). Some days this happens quite often. Other days it doesn't happen at all. It was purchased new, not refurbished.

Has anyone else experienced this when they used the Franklin R850? Any way to solve this problem?

Thanks for any insights, suggestions, solutions!

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1 week 6 days ago #41117 by Chelle
Could be a bad cord. With no battery, any power interruption will cause it to turn off.
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1 week 6 days ago #41118 by peterquinn

Chelle wrote: Could be a bad cord. With no battery, any power interruption will cause it to turn off.


I don't think the power can get interrupted. The cord is the original cord that came with it. The R850 sits on a nice, stable table, where nothing can move it or tug on the cord etc. Wonder what's going on. Could it be Sprint-related?

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1 week 6 days ago #41119 by PEW
Freedompop does not give you the OEM power supply. These hotspots are used/refurbished.

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1 week 6 days ago #41120 by Isamorph

peterquinn wrote:

Chelle wrote: Could be a bad cord. With no battery, any power interruption will cause it to turn off.


I don't think the power can get interrupted. The cord is the original cord that came with it. The R850 sits on a nice, stable table, where nothing can move it or tug on the cord etc. Wonder what's going on. Could it be Sprint-related?


Things to try: maybe see if putting the battery back in and plug the power cord back in and run it for a while and see what happens. Reset the device.

support.sprint.com/support/article/Troubleshoot-when-your-R850-Mobile-Hotspot-slows-freezes-or-turns-off-unexpectedly/WTroubleshootingGuide_542_GKB94303-dvc10130000prd

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1 week 6 days ago #41121 by peterquinn
Thanks for the link, Isamorph! Will try all the suggestions listed there.

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1 week 6 days ago #41122 by peterquinn

PEW wrote: Freedompop does not give you the OEM power supply. These hotspots are used/refurbished.


It's not a FreedomPop hotspot. House-mate qualified for subsidized internet and the device he got was brand new, not refurbished or reconditioned etc.

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1 week 6 days ago #41123 by peterquinn
Aah, so I just searched the Nth forum, and found this post by Chelle -https://www.nthcircle.com/forum/ting/2669-25-30gb-on-the-sprint-network#37259 - about disabling one of the bands and forcing it to connect to a faster band.

I am inspired! Isamorph's link mentions - "If the mobile network signal is low on the R850 Mobile Hotspot, or if devices connected via Wi-Fi have low Wi-Fi signal, the connection could be slow or freeze." So maybe Chelle's band-selection idea is the answer to my problem!

But how do I find out which Sprint bands are fast or slow in my area? (Scratching-my-head emoji here!)

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1 week 6 days ago #41124 by Isamorph
I doubt a weak signal would turn off the hotspot, so I'd try the device reset first. You could try different bands while seeing how many bars the device gets on each one, but checking up and downloads speeds on each band using speedtest.net would be more precise.

www.speedtest.net/

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1 week 5 days ago #41125 by KentE
I think both Chelle and Isamorph have pointed towards where you should look first: the power supply.
From your reports, peterquinn, the device is shutting off, not running slow or freezing. Tips regarding those things are useful once you get the R850 to remain powered up.

I understand that the cable and power supply are new, and in a stable location. They're exceedingly cheap devices that are way more reliable than one might expect from the cost, but also prone to failure. (And electrical outlets can also become intermittent.)

I'd start by gently wiggling the power supply where it plugs into the wall outlet, the cable exiting the power supply, and the last inch or so of the cable plugged into the hotspot.
If that doesn't reveal a problem, install the battery and run it for a couple of days. (Or long enough that you would normally have seen a couple of shut-downs.) Or, run it only on the battery through a couple of charge/discharge cycles, and see if it stays powered up reliably.

My brief reading on the R850 finds many suggestions to run it without the battery installed (including that suggestion from 4G Community), so that seems like a logical approach. I'll only note that in my trials with other hotspots, some would run, but not run reliably, without the battery. (With shutdowns or bootloops as a result.) Whether or not a hotspot will reliably run without the battery installed is a matter of electronic design.
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