1, Ericsson is a big company. When you study, you have no information and nowhere to find it. Everyone hangs on it. The answer you get the most is "check alex".
2. Ericsson's product MTBF, just ask someone who has maintained it. RMA can be done for at least 2 weeks, and it is also a pre-repair.
Isn't it depressing that you are certified for maintenance? Ericsson 1876 was founded in Stockholm, Sweden. From the early production of telephones and program-controlled switches to today's largest mobile communication equipment manufacturer in the world, Ericsson's business covers more than 80 countries and regions around the world, and it is the world's leading end-to-end integrated communication solution and professional service provider. Ericsson's global business includes: communication network system, professional telecommunication service, patent authorization, enterprise system, operation support system (OSS) and business support system (BSS). Ericsson's 2G, 3G and 4G wireless communication networks are widely used and deployed by major operators around the world. Ericsson is also a global leader in mobile communication standardization. Ericsson's business dealings with China can be traced back to 1892. China has always been one of the most important markets for Ericsson in the world. In 2002, China became one of Ericsson's three global product supply centers; In 2002, Ericsson China R&D Institute was established in Beijing. Since 2000, the investment of Ericsson R&D in China has increased at a high speed of 30% every year. 65438-0997, Ericsson China Institute was established in Beijing to train excellent technical and management talents for China telecom industry.