Repair for my portable modem was not possible

Hello ​@Alliuzun , welcome back to our community 🌼I’ve moved your enquiry to a separate post. That way, we can provide you with better support than we could under the FAQ.

It’s a shame that your portable modem isn’t working properly anymore and that the repair wasn’t possible :/

Were you told why the repair was refused? Can you tell us what is wrong with the device?

Kind regards, Rebecca

Dear Rebecca,
Thank you very much for your efforts to create a seperate post and try to propose a solution.

My portable Zyxel modem purchased from O2 upon O2 suggestion, is switching itself off and no matter there is full charge or not, whether I press long to swithc on button, it is not switching on at all.

After a few days if I try, sometimes by chance it is switching on. The modem is defective. 

I asked O2 assistance on the phone to send them to check and repair, however they told me they cannot help me since it is brand Zyxel and I contacted the company where they told me definitely that only O2 is my counterpart to request repair and warannty. O2 told me that O2 does not provide any warranty therefore I have to try to fix it mysefl on my own cost. Even though German or EU laws says all electronic devices has warannty your commegues are not aware of EU laws and regulations.

It was very dissapointing

Best Regards

Ali Uzun

Did you really buy the router from O2 or is it rented? If bought, when?

If you bought it, then there a statutory warranty provided by the seller, i.e. o2. Also the manufacturer provides a warranty though: https://mysupport.zyxel.com/hc/en-us/categories/22059447873170-Warranty-Information

You must have been given a reason why the repair was refused.

I bought the router from O2 in June2025 for 219 Euro in installments and I have to still pay 20 months. I can send the invoice if required. 

The given reason was due to the link they provided me to enter the device serial number gives error message : ) That was the funny reason. O2 links are not proper and they want to punish the customers. Unbelievable.
Anyhow I am planning to cancel all my contracts with O2 soon. I am spending too much time with simple things. I am also not happy with the network coverage and poor reception of simcards.