Troubleshooting & Maintenance
We provide expert troubleshooting and long-term maintenance services for embedded systems, electronics, and firmware—resolving issues that impact performance, stability, or production reliability. From board-level signal diagnostics to deep firmware debugging, we apply systematic methodologies and professional tools to identify root causes, eliminate faults, and extend product lifespans. Our services are designed to support both one-time recovery and ongoing operational health.
KEY HIGHLIGHTS
Hardware Diagnostics & Signal Integrity
n-depth analysis of analog and digital signals using oscilloscopes, logic analyzers, and power profiling tools. We detect and resolve issues like EMI susceptibility, signal reflections, timing mismatches, and unstable power delivery.
Embedded Firmware Debugging
Systematic root cause analysis using JTAG/SWD debuggers and trace tools. We address bugs involving interrupt handling, memory leaks, race conditions, stack overflows, and sleep/wake transitions.
Peripheral & Communication Issues
Resolution of I2C/SPI/UART timing conflicts, data corruption, bus contention, and inconsistent peripheral behavior across production batches or under environmental stress.
Power & Performance Profiling
Deep current profiling and power optimization for battery-powered and low-power devices. We use tools like Joulescope and Otii to trace active and sleep states, runtime energy usage, and peak current issues.
Field Issue Replication & RCA
Reproduction and diagnosis of field-returned devices with intermittent faults, boot failures, OTA disruptions, and thermal instability. Includes design review and component tolerance checks.
Long-Term Support & Maintenance Plans
Ongoing firmware updates, security patches, and feature adjustments. SLA-based support options ensure quick resolution of regressions, technical support, and remote diagnostics.
Debugging Tools & Techniques
Logic Analyzer, J-Link, oscilloscopes, GDB, Valgrind, Tracealyzer, Environmental testing (thermal, vibration, EMI pre-checks), regression testing, automated scripting for interface stress tests
TROUBLESHOOTING & MAINTENANCE CAPABILITIES
Hardware diagnostics and signal integrity analysis using oscilloscopes, logic analyzers, and power profiling
Embedded firmware debugging for interrupts, memory, race conditions, and system stability
Peripheral and communication issue resolution for I2C, SPI, UART, CAN, and USB interfaces
Power profiling and optimization for battery-operated and low-power devices
Field issue replication, root-cause analysis, and component-level verification
Long-term support with firmware updates, security patches, and SLA-based maintenance plans
USE CASES
- •Unstable behavior in production hardware or firmware
- •Firmware crashes, unexpected resets, or watchdog timeouts
- •Battery drain or thermal problems in mobile and wearable devices
- •Device hangs or data loss during OTA updates
- •Debugging new silicon or porting firmware to updated hardware
- •Continuous maintenance and remote updates for field-deployed devices
Client Success
Don't Take Our Word For It, Read Our Client Success Stories
ZyntelliTech exceeded our expectations in delivering a custom firmware solution for our IoT distance measurement device. Their team expertly developed firmware on the Nordic nRF9160 platform, integrating a Time-of-Flight (ToF) sensor to measure distance with high precision and consistency. In addition to accurate sensor integration, ZyntelliTech implemented GPS functionality and designed a reliable data pipeline to transmit real-time sensor readings and location data to our AWS cloud infrastructure. Their deep understanding of LTE-M/NB-IoT communication, MQTT protocols, and cloud connectivity enabled seamless, low-latency performance across our system. Throughout the project, ZyntelliTech demonstrated excellent technical skills, clear communication, and a proactive approach to problem-solving. Their firmware was well-structured, power-optimized, and thoroughly documented—making it easy to scale and maintain. We highly recommend them as a development partner for any IoT, cloud-connected, or sensor-driven project.
Hunter Raley, CEO
We partnered with ZyntelliTech Development LLC to develop a custom IoT solution based on the ESP32-S3 platform—and the results were exceptional. Their team engineered a reliable, low-power controller that captures real-time UV sensor data and seamlessly transmits it to our AWS cloud infrastructure. ZyntelliTech handled every layer of the system: from embedded firmware with OTA update capabilities and AWS IoT Core fleet provisioning, to full mobile app development using Flutter. The mobile apps allow users to monitor and manage devices effortlessly, with real-time data visualization and secure device onboarding. Their ability to deliver a tightly integrated solution—from hardware to cloud to mobile—was exactly what we needed. The firmware was efficient, the cloud communication was rock-solid, and the apps were beautifully designed and intuitive. ZyntelliTech proved to be a reliable and forward-thinking development partner, and we highly recommend them for any end-to-end IoT project.
Charles Rigby, CEO
ZyntelliTech Development LLC delivered a complete RF control solution for our vehicle system, handling both hardware and firmware development with precision and professionalism. Their team designed custom electronic boards for the RF transmitter and receiver modules, ensuring reliable long-range communication and signal integrity under demanding conditions. In addition to hardware design, ZyntelliTech developed embedded firmware optimized for responsive control, robust pairing, and interference resistance. The system performed flawlessly in field tests, demonstrating the team's deep understanding of RF communication protocols and automotive-grade reliability. This project showcased ZyntelliTech’s end-to-end capability—from schematic and PCB design to low-level embedded programming and RF performance tuning. We highly recommend them for any project requiring custom wireless control systems or vehicle integration.
Dennis Chim, Co-Founder
ZyntelliTech Development LLC played a pivotal role in the successful development of our advanced wireless sensor system. The team engineered a scalable solution using Nordic’s nRF52 series for BLE mesh networking and the nRF9160 as a cellular gateway, seamlessly connecting edge devices to our AWS cloud infrastructure. ZyntelliTech provided full-stack services—including custom PCB design, low-power firmware development, and end-to-end AWS integration. Their implementation of a robust BLE mesh network enabled reliable, long-range communication between sensor nodes, while the nRF9160 gateway ensured real-time data transmission over LTE-M with secure cloud connectivity. In addition to the technical architecture, they managed prototype manufacturing and hardware validation, delivering a complete, production-ready system. Their deep expertise in embedded systems, wireless communication, and cloud-connected IoT made them an invaluable partner. We highly recommend ZyntelliTech for complex IoT product development and deployment.