A headache is a headache. I suggest you apply for a certificate. You will use it in many places in the future. You can’t just find someone for every software you need, right...
According to the website The tips are step by step. No matter how stupid you are, you can finish it in an hour.
After applying for the certificate, download HelloOX and crack the phone. You will no longer need the certificate when installing software in the future. Once and for all