Hi
Am attempting to use a 3 sim in an old Nokia 6555 . Phone works great .Can get all GSM Frequency sims accepted also O2 sim will work on UTMS (3g) setting of 2100 which is the same frequency that 3 uses however the 3 sim is not recognised . Works ok in the Smart phone that its been used in for the past 3 years . Any suggestions please .
Hi @Brushy 👋 Where did you purchase the phone initially? Is it an old o2 or Three phone? Ashlee
Hi Brushy, would the 3 SIM you have be a 4G SIM as it may not work in the phone. Have you tested the 3 SIM in another phone.
Have you been able to test other SIMs in the phone besides your Three SIM?
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