Since rsim business works, it has been about 10 years, but always there has upgrade mode and upgrdae chip, like from ICCID mode, TMSI mode, Black Mode and QPE Mode etc.
For chip, there also have some kinds of brands, like Rsim5, Heicard, Usim,Good sim and wellsim etc. In fact, all of them works same, in another words, using the same mode at the same stage, but for chip, it is different, some made in china and some export from another country.
So for chip and mode, it acts how a rsim chip work and making. But there has glue version single side and fold version with double side.
Glue version, Single side
Works for all models , from iPhone 8 - 15promax.
Note: for iPhone 12mini, 13mini and SE3, only use glue version.
Fold Version, Double side
Works for iPhone Xr - 15promax.
Note: if need to work for iPhone 7 8 X Xs, need to cut it as the dotted line but make sure the chip not broken.
During the using rsim chip, pls be carefully and make sure the chip stick well or clip closely with the sim card well , so it will capture the signal easier. For more rsim chip using and guiding, pls follow us at youtube channel: turbosim_unlock chip.