Shenzhen JC Innovation Device Co., Ltd. (hereinafter referred to as “JCID”) is a subsidiary of JCID&AiXun Group Company, was founded in 2013 by a group of interesting guys with enthusiasm and high education.
JCID focuses on providing complete solutions for the maintenance and repair of smart phones, such as nand expansion, screen data repair, true tone/vibration/touch/brightness repair, battery data repair, fingerprint data and facial recognition, etc.
JCID Programmer
Nand Read & Write Programmer
Nand Restoring Testing Fixture
Flex Cable & Chip
Tools & Accessories
EEPROM Chip Programmer
U70 Gen2 UFS Programmer For Android UFS/eMMC/ISP Nand Repair 
EM03 Gen3 CNC Smart Grinding Machine Polisher for Nand Chip and CPU Polishing- JCID
17 Series SIM Slot Grinding Kit High-Precision Milling Tool Set for EM02/EM03 Grinding Machine - JCID
FOG Screen Intelligent Test Card AI-Powered Display Identification Tool - JCID 
USB Drive Conversion Kit NAND Chip Android Phone Repair Tool - JCID
17 Series Tag-on Front and Rear Camera Repair Flex Cable - JCIDFinding a complete and updated answer key for 6300 Problemas de Química Básica
Recommendations
Note that the "updated" version often renumbers problems from the older 3800 Problemas Finding a complete and updated answer key for
Muchas comunidades de ingeniería tienen bots o archivos fijos. Busca canales como "Ciencias PreU", "Química Álvarez Solucionario". Ahí suelen compartir PDFs escaneados con resolución decente y anotaciones corregidas. and chemical nomenclature.
Líquidos y Sólidos: Fuerzas intermoleculares y diagramas de fase. 3. Estructura Atómica y Tabla Periódica Configuración electrónica y números cuánticos. Finding a complete and updated answer key for
Academic Repositories: Universities like the Universidad Católica Boliviana (UCB) list various editions (such as the "3800 Problemas" version) in their digital catalogs, which often include solved examples within the text.
Structure: It is a massive collection of exercises covering fundamental topics such as stoichiometry, atomic structure, and chemical nomenclature.
Finding a complete and updated answer key for 6300 Problemas de Química Básica
Recommendations
Note that the "updated" version often renumbers problems from the older 3800 Problemas
Muchas comunidades de ingeniería tienen bots o archivos fijos. Busca canales como "Ciencias PreU", "Química Álvarez Solucionario". Ahí suelen compartir PDFs escaneados con resolución decente y anotaciones corregidas.
Líquidos y Sólidos: Fuerzas intermoleculares y diagramas de fase. 3. Estructura Atómica y Tabla Periódica Configuración electrónica y números cuánticos.
Academic Repositories: Universities like the Universidad Católica Boliviana (UCB) list various editions (such as the "3800 Problemas" version) in their digital catalogs, which often include solved examples within the text.
Structure: It is a massive collection of exercises covering fundamental topics such as stoichiometry, atomic structure, and chemical nomenclature.
WhatsApp