Huawei Technologies RF Engineer interview questions

I got the interview through a recommendation from a former colleague. The process has 3 phases ( interview with a technical manager about competences, Human Resources responsable and then with senior director). The interviews are very technical so be prepared. They request the pay from former employer before proposing a salary. The quality of the process is very poor and shows how unorganised they are. They gave me a first offer which I didn't accept because of salary, and then they made a second proposal with better condition but not immediate and then no news from them.

Answered to a recruiting message, contacted after a couple of days from HR. Telephone interview with european technical responsible, then f2f interview with HR and department leader. The complete process took just one week because they needed urgently a profile like mine