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  1. Replies
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    I checked my paygo account this evening, prior to...

    I checked my paygo account this evening, prior to seeing this thread, and noticed Page Plus did correct its over 5x-inflated balance sometime over the past month, down to what looks like an...
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    For what it's worth, I noticed during testing...

    For what it's worth, I noticed during testing last year that phones with a not-yet-activated TF-AT&T SIM would only lock onto 3G (UMTS/WCDMA/HSPA) signals. Once activated, the phone had no trouble...
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    One thing most smartmeter mesh systems and...

    One thing most smartmeter mesh systems and planned LAA networks have in common is that by needlessly occupying (or at least raising the noise floor on) some of the very limited swaths of unlicensed...
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    162331 Here's a photo of the closest smartmeter...

    162331
    Here's a photo of the closest smartmeter uplink station in my neighborhood - not the best quality since I took it through the windshield while driving, and the board shrunk that down more...
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    Possibly a backhaul node for the power utility's...

    Possibly a backhaul node for the power utility's smart-meters, which typically form a mesh-network (on 900MHz ISM band in this area), and repeat signals amongst themselves until reaching one of these...
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    My PPC paygo account, converted to 4G-LTE last...

    My PPC paygo account, converted to 4G-LTE last September or so, also just had its expiration extended into July, from an original date of 4/21/2019 to 7/17/2019, for 87 bonus days in all if I'm...
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    Here's a link to the long-standing Android bug...

    Here's a link to the long-standing Android bug report about this problem: https://issuetracker.google.com/issues/37136986
    This has been open for years, so it probably won't be fixed anytime soon.
    ...
  8. I'll try to remember to test this next month,...

    I'll try to remember to test this next month, maybe leaving a tethered connection up overnight on the expected rollover date, with a VPN connection routed through, or maybe just a slow ping running...
  9. At least in my area, there are still many Verizon...

    At least in my area, there are still many Verizon towers that provide LTE *only* on Band 13 700MHz, never having been upgraded since vzw's initial LTE deployment (so, no B4/66 or B2, nor B5 here...
  10. Is it "normal" for a prepaid account to lose data service on renewal night?

    I'm on the grandfathered $30/mo 5GB+100min+unlimited-text "Walmart" plan, which is a great fit for my use pattern. My account was scheduled to renew for another the month last Saturday night /...
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    B4 vs B66 should make no difference in itself,...

    B4 vs B66 should make no difference in itself, and I didn't notice any degradation at all in my region when MFBI was turned up last year (even though TMO has no AWS-3 licenses anywhere close, so...
  12. 2G (GSM) service has been shut down for voice &...

    2G (GSM) service has been shut down for voice & text as well as data.

    "UMTS" is the specific 3G standard a phone needs to support to operate on AT&T's network. It also needs to support UMTS on...
  13. Just as another data point, Visual Voicemail does...

    Just as another data point, Visual Voicemail does work for me on Page Plus (paygo, no monthly plan), using a Moto E4 XT1768 US Cellular variant running Android 7.1, and has been active since I...
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    Could you tell which band you were on? If not,...

    Could you tell which band you were on? If not, apps like Signalcheck Lite, LTE Discovery etc. will tell you, while Network Signal Guru gives this plus a lot more technical detail, and even lets you...
  15. Well, it took them long enough, a full nine...

    Well, it took them long enough, a full nine months, but I'm happy to see that T-mobile appears to have finally fixed this Band4/66 coverage hole near my home, mostly by increasing signal strength...
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    Depending on how data was gathered, the erroneous...

    Depending on how data was gathered, the erroneous "Band 3" 1800MHz shown in the original version of that map may be due to a bug present in many Android phones, which causes EARFCN's above 65535,...
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    To expand a bit on the "system app" distinction -...

    To expand a bit on the "system app" distinction - most apps that are bundled with an Android device, including the various Google ones but also random carrier bloatware, come installed in the /system...
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    On an iPhone, open the Dialer as if you're...

    On an iPhone, open the Dialer as if you're placing a voice call, then enter *3001#12345#* (beginning and ending with an asterisk) and click the dial button.

    This should open the hidden Field Test...
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    The network may be moving you between different...

    The network may be moving you between different frequency bands depending on (among other things) the amount of load from other users on each band at that particular moment. Assuming LTE, in most...
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    True, but it's very common for carriers to share...

    True, but it's very common for carriers to share towers (or rooftop sites). Many around here include equipment from all 4. Which carrier gets the upper antenna rack can make a difference, if...
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    Yes, for T-Mobile definitely make sure the phone...

    Yes, for T-Mobile definitely make sure the phone has both B12 and VoLTE (and B71 if possible, though options there are still limited.)

    TMO generally performs well for me also, but there are a few...
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    In general, lower frequencies are better for...

    In general, lower frequencies are better for building penetration, but the specific frequencies used by each carrier, and how much capacity they have on each (which can affect a phone's likelihood to...
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    Safelink appears to automatically add a new...

    Safelink appears to automatically add a new increment of airtime at the end of each month, somewhere between 100 and 300 minutes in my friend's case, while pushing expiration forward to the start of...
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    One potential issue is that in lieu of plain...

    One potential issue is that in lieu of plain CGNAT as AT&T/VZW have deployed, T-mobile uses 464XLAT address translation (aka CLAT) to wrap IPv4 traffic inside IPv6 sent over-the-air. FTP in...
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    If you have a rooted Android phone, an app called...

    If you have a rooted Android phone, an app called "Battery Charge Limit" (free in the Play Store from developer name "SL/\SH") allows setting a charge-level ceiling below 100%, to extend cell service...
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