Lycamobile Switzerland "User Manual"

Lycamobile Switzerland has one of the best prepaid mobile offers in Switzerland. However, I find their website and service slightly chaotic.

So I will try to compile all available codes and shortcuts for easy reference:

Validity:

minimum one call or SMS per 5 months should keep the card alive
After this, there's a grace period of 30 days within which the card needs to be topped up, otherwise the number is deactivated and lost
Via *139*9999# any SIM can be kept alive for 1 year; costs CHF 5/year (I´m not sure if this is charged once ordered, or only charged if the card would've otherwise been cancelled?!)

Customer Service:

Credit:

recharge via code: *131*PIN#
check credit: *131#
check credit via voiceprompt, charge via CreditCard, change language: +41-77-9000131

Mailbox / Voicemail:

Show own number on screen:

Call diverts:

If Roaming doesn't work (strangely enough this isn't anywhere in Lycamobile's instructions):

There's a STK "SIM-Tool-Kit" on the SIM-card.
all phones have different implementations to these functions, so you'll have to try a bit. Look for STK / SIM-Tools / SimToolKit or similar
Once you find it, there is one option "Lycamobile" - choose it
Within in, you'll find "select mode" and "select language"
Within "select mode" you'll see "automatic" and "manual"
"Automatic" is pre-selected. On most phone this should work, but if your Roaming doesn't work, you'll have to chose "manual".
You can now switch to the country in which you want to roam, or the "roaming" profile for countries which don't appear in the list.
With some phones, the phone crashes once you select a new country. No reason for panick - just re-boot, and the new setting will take effect.
Once you change the setting, internet-access details have to be re-entered, but only once per country. That's because what you do here is effectively entering a new SIM-card into the phone!