How to dual sim a single sim device? - Samsung Galaxy Note 20 Ultra Questions & Answers

So I ha e seen there are a couple of solutions out there such as Simore who have a Bluetooth unit and also router connected devices, plus there’s all those external cable adapters. My question is for anyone who has one and what their experience is.
Is there a dual sim active solution?

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DUAL SIM Card Simyo / Simplytel

I´m using a HTC magician. I want to use two SIM cards with a dual SIM adapter.
The adapter works with e.g the Simplytel card and an old D2 card.
My problem is: the dual SIM adapter doesn´t work with the combination Simyo / Simplytel. It doesn´t matter if the Simyo card ist used as first or second card its never seen by the system.
The Simyo card works in the cellphone if used alone.

[Q] Dual Band Mini Wifi Adaptor for Android Phone

hey guys
i was just wondering if there is any way of getting dual band wifi on an android phone that doesnt support it. For example i have the ace 3 S7275, and it doesnt support dual band wifi. i found a site that sells adaptors that is compatible with the phone and many others( http://www.mobilezap.com.au/11590-pocket-usb-wifi-wireless-lan-adapter.htm ), but it is 2.4ghz, i need 5ghz
i do have the cable that you can plug in a usb with
Thanks

sim card is not detected

I have a used Mi4 since 3 days.It doesn't detect the micro sim card that I made from my old Mi2s (mini sim) .
it detected only once one other micro sim from an S4 but from then never again.Should I change my mini sim card to a new one micro sim?The man I bought from told me that it was working perfectly.
Same here when i used and nano to micro adapter then i got a new micro sim and it works perfect... This phone dosnt seem to like sim adapters
Mennooo said:
Same here when i used and nano to micro adapter then i got a new micro sim and it works perfect... This phone dosnt seem to like sim adapters
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Same here.
Italy.
Tim italy 128k sim recognized - working
Tim italy sim not recognized
Vodafone italy sim not recognized
3 ITA sim not recognized
the 3 ITA sim was recognized only once before stopped working with a unstable rom that crashed.
Any suggests?
If the SIM card tray is damaged (for example, a piece of plastic is chipped off or a metal plate is deformed), this can be the cause of the problem when the Xiaomi smartphone does not see the SIM card.
I had such a situation on my Mi 3. In the service center they could not find the cause of the problem, I found it myself.
I hope this information will help to somebody.

Dual sim card adapter changed my radio wave?

i was searching ebay for dual sim adapter, and there are a few like these http://www.ebay.com/itm/Dual-SIM-Ca...947338?hash=item1a0a2e2a4a:g:c~UAAOSw3ydVpHpl
when i removed the adapter, my regular sim card still says i'm roaming international, anyone expereince this and know how to change it back? it would let me changed the network settings for my data.

OPO No signal, service issue

Dear all,
I kindly ask your support for the following issue: I have got a OPO lineage os 18.1 which doesn't recognize any 3G\4G signal anymore.
here below the description of the issue:
as OPO is my backup phone I have a nano sim so I used an adapter to put the sim inside the OPO, unfortunately removing the support the adapter got stuck inside the sim reader so I had to disassembly the smartphone to manually release the adapter blocked by the pins of the sim reader. After this procedure and after the connection of all the parts including the cable antenna, now OPO detects the sim, prompts to ask the sim code but after that I get NO SIGNAL.
as I wrote the antenna cable is connected on both the terminals. What do you think? Antenna cable damaged? Sim reader damaged? Something else?
I asked to a smartphone repair shop and they quoted 30euro.
attached some pictures
any support or opinion will be appreciated
thank you

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