Guide with all the steps necessary for you to change the speaker of the Caterpillar S50 yourself.
Characteristics:
Dimensions: 77 x 144.5 x 12.7 mm
Weight: 185 g
SoC: Qualcomm Snapdragon 400 MSM8926
Processor: ARM Cortex-A7, 1200 MHz, Number of cores: 4
Graphics processor: Qualcomm Adreno 305, Number of cores: 1
RAM memory: 2 GB
Internal memory: 8 GB
Memory cards: microSD, microSDHC, microSDXC
Display: 4.7 in., LCD, 720 x 1280 pixels, 24 bit.
Battery: 2630 mAh, Li-ion (lithium ion)
Operating system : Android 4.4.2 KitKat
Camera: 3200 x 2400 pixels, 1920 x 1080 pixels, 30 fps
SIM card: Micro-SIM
Wi-Fi: b, g, n, n 5GHz, Wi-Fi Hotspot
USB: 2.0, Micro USB
Bluetooth: 4.0
Location / Navigation: GPS, A-GPS, GLONASS