Other decoder cards have provided newer software to customers to solve this problem and to work on ios 12.3.
But greed and material interests are more important than customer satisfaction.

Heicard does offer the download. They even offer free create your custom firmware.

Notice:
IOS12.2 iccid unlock has been turned off by Apple
It must be upgraded to the latest IOS12.3 for unlock

rsim12 solution for ios12.3
-Get an factory unlocked iPhone
-Put the R-Sim inside with any Sim.
-Go to "Data settings/Aplications Sim
-Just hit "Edit ICCID" setting to newest,
Then unlock your iphone
still working ,but need setting first
the newest rsim14 ,rsim12+ ,no need this step

https://www.youtube.com/watch?v=IVu95lrOTco
https://www.youtube.com/watch?v=LDW5...ture=*********

Is it the same r sim 14 which was released some few weeks ago or its a new r sim 14?
If so, has the old r sim 14 gone useless?

rsim12 solution for ios12.3
-Get an factory unlocked iPhone
-Put the R-Sim inside with any Sim.
-Go to "Data settings/Aplications Sim
-Just hit "Edit ICCID" setting to newest,
Then unlock your iphone
still working ,but need setting first

I have R-sim 13 Need to unlock iphone 6 plus Os 12.2
how ????

R-sim 13 not well now , need rsim12+,or rsim14

Hello, can you tell me please I have new RSIM14, is Rsim12+ the same or not? I'm already tired of buying new rsims...

Having some pretty big inconsistencies with RSIM 14. Sold a bunch of phones with it, where I test the sim, it unlocks fine (Sprint locked, using my AT&T sim), and it all checks out. Then I ship to my buyer & about 50% of the sales are coming back as not showing at all. Customers are saying when they put their sim inside the RSim 14, nothing happens - service doesn't pop up in the top corner like it does normally. I don't understand why it's so hit & miss.

Were these made fast & crappy? Anyone else having similar issues?

solution for ios12.3
-Get an factory unlocked iPhone
-Put the R-Sim inside with any Sim.
-Go to "Data settings/Aplications Sim
-Just hit "Edit ICCID" setting to newest,
Then unlock your iphone
still working ,but need setting first

is this supported i phone 5?

not working 12.3.1
 

this is not working on ios 12.3.1 keeps saying "error performing request unknown error"

working good on ios 12.3.1,tested okkk

Hi everyone

I am using r sim 12+ interposers now.
1. Do you only get one activation oer interposer. i.e. If I enter an old ICCID, caqn I re-use r sim 12+? Does not seem to open menu after one shot?

2.What is the best place (webpage) to get the latest ICCID's?

Thanks all, have a great day