Yeah, you’re right, quality control issues plague these brands sometimes but if you spend enough time to study the market sentiments, you’ll get a great device every time. Personally I never buy phones from these companies on pre-order because I’ll be the Guinea pig so I wait a month to three months after the consumer devices start shipping (more if I want a custom ROM). That way, if you know where to look, you’ll see plenty of discussion about any newly released phone and armed with that information, you can go ahead and buy the one that causes few to no tears being shed.
Unfortunately for these brands, every once in a while you’ll get a phone that utterly disappoints customers but those are getting fewer. The quality of manufacturing techniques is converging with every passing day because even unknown brands in China are getting access to the most modern equipment because of technological advancement and the oversupply of manufacturing facilities in the country. Furthermore, very few companies dominate the production and supply of vital components of smartphones. Just to name a few, these companies dominate in producing the respective components…
- DRAM chips: Samsung, SK Hynix, Micron
2.Camera Modules: SONY, Samsung, OmniVision, Toshiba, SK Hynix
Internal Memory (colloquial:ROM): Samsung, Micron (also manufactures NAND flash for Intel), SanDisk, SK Hynix, Toshiba (in 50-50 joint venture with SanDisk)
Displays: Samsung, Japan Display, LG, Sharp, Chimei, AUO
Batteries: Samsung SDI, LISHEN, BAK, BYD, HYB battery, DNK Power, ATL, Foxconn, SGM, ERD, CELCOM, Eastar, Honoto
6.SoC: Apple, Qualcomm, Exynos, Kirin, MediaTek, Surge (Xiaomi’s first attempt).
My point is that there are thousands of smartphones out there but considering that there are often just over five companies supplying almost all important components of the phones, it is not that easy for a company to make a dramatically different phone (of comparable price) from another company in the areas that matter. Quality control is usually the biggest complaint of smartphone user-reported problems.
I guess I’m a bit fortunate to not have come across these quality control issues but really luck has little to do with it. With the sheer number of smartphones produced, only a small percentage of them are plagued with these issues. Heck! Even big brands like Samsung and Apple sometimes get bit by the QC bug not because they are not good manufacturers but because they use numerous third-party components.