Here’s a list of services offered in an AC-intense mobile phone repair shop in Trinidad (Cuba): "desbloqueo decodificatión y liberación de celulares, código de usuario, cambio de idioma, cambio de frecuencia, reparación de software (flasheo), reparación de celulares Chinos, reparaciones generales de hardware (display, flex, táctiles, bocinas, micrófonos, régiment de carga), eliminación de humedad a móviles, instalación de aplicaciones, actualización de sistema Android, actualización de sistema IOS, configuración del coreo nauta, información et asesoria gratuitas."
A rather broad and interesting inventory. Some of the services can generally be fond in this type of shop ((I regularly visit these stores while traveling here and there )); unlocking the SIM card and change components (speaker, microphone ...) in particular. I also understood "eliminación of humedad has móviles" is not related to the climatic constraints of moisture as one might think, but rather to the fact that many people, there as elsewhere, seems to drop the phone in the water 📱💦. The other services are less common : assistance with phone configuration (language, messaging software, update OS) or app installation. The precision concerning the Chinese mobile phone repair is obviously intriguing too.
Basically, this type of store is not very different from those I have just a few meters from my home in Geneva. However, Cuba has many other shop/counters/garage/apartment????) offering repair services for all kinds of other artifacts : for automobiles of course (from 1951 Plymouth to the latest Audi), electro-mechanical watch/clock, garden and kitchen hardware, bikes, etc.