ZTE Jasper LTE (K87CC) Firmware Flash File Download [Stock Rom]
The ZTE Jasper LTE (model K87CC) is a budget-friendly smartphone that was offered by T-Mobile in the United States. It provides the essential features for everyday communication. If your Jasper LTE is stuck on the T-Mobile splash screen, has become very slow, or is soft-bricked, reinstalling the official stock firmware is the most effective solution to restore it to its original working condition.
Important Note: This device is powered by a Qualcomm Snapdragon 210 chipset. The restoration process requires flashing the firmware using the QFIL tool while the device is in EDL Mode. This firmware will restore the official T-Mobile software, including all original apps and the network lock.
Quick Device Specs
- Device: ZTE Jasper LTE (K87CC)
- Release year: 2017
- Chipset: Qualcomm MSM8909 Snapdragon 210
- Display: 5.5″ qHD (960×540)
- Battery: 2500 mAh (Non-removable)
- Memory: 1GB RAM + 8GB storage
- Camera: 5MP rear, 2MP front
- OS: Android 7.1.1 (Nougat)
- Carrier: T-Mobile (USA)
Required Downloads
| File / Tool | Download Link |
|---|---|
| QPST (QFIL) Tool | Download QPST Tool |
| Qualcomm USB Drivers | Download Drivers |
Stock ROM & Firmware
| Version | Android | Carrier | Type | Download | Size |
|---|---|---|---|---|---|
| V1.0.0B18 | 7.1.1 (Nougat) | T-Mobile (USA) | QPST | Download | ~1.4 GB |
Quick Flashing Guide
- Download and install the Qualcomm USB Drivers and the QPST Tool on your PC.
- Extract the downloaded firmware ZIP file to a folder on your computer.
- Power off your ZTE Jasper LTE and boot it into EDL Mode by holding the Volume Up + Volume Down buttons while connecting it to the PC via USB cable.
- Launch QFIL, load the firmware files (prog_…mbn and rawprogram/patch XMLs), and click the “Download” button to begin flashing.
For a complete, step-by-step tutorial with screenshots, please refer to our definitive guide:
How to Flash Firmware on Qualcomm Smartphones with QFIL
FAQs
Q1. Will this firmware remove the T-Mobile network lock?
No. This is the official T-Mobile stock firmware. It will restore the phone’s original software but will not remove or alter the SIM lock. The device will remain locked to the T-Mobile network.
Q2. The phone has very low RAM and storage. Will it be slow?
The ZTE Jasper LTE is an entry-level device with hardware designed for basic tasks. After a clean flash, it will perform as it did out of the box. To maintain performance, it is crucial to use a microSD card for storage and be very selective about installing additional apps.
Q3. What is EDL Mode and why is it necessary?
EDL (Emergency Download) Mode is a special recovery mode for Qualcomm devices. It allows QFIL to bypass a corrupted or non-booting operating system and flash the firmware directly to the phone’s storage, which is essential for unbricking a device.
Q4. My phone is stuck on the pink T-Mobile screen after flashing. What should I do?
The first boot after a full flash can take a long time (10-15 minutes). If it remains stuck after this period, you should boot into recovery mode (hold Volume Up + Power from off) and perform a “Wipe data/factory reset”.
Troubleshooting (ZTE Jasper LTE)
- QFIL shows “No Port Available” or gives a “Sahara” error: This is the most common flashing issue and is almost always caused by a driver problem. Reinstall the Qualcomm 9008 drivers, check Windows Device Manager to ensure the device is recognized, and use a high-quality USB cable.
- “Invalid SIM” error: This message is expected if you insert a SIM card from a carrier other than T-Mobile or its MVNOs. The phone is network-locked.
- T-Mobile apps are not working correctly: After a fresh flash and setup, connect to Wi-Fi and open the Google Play Store. Go to “My apps & games” and update all applications. This usually resolves any stability issues.
- Flashing succeeds but the phone still bootloops: If a clean flash followed by a factory reset from recovery does not fix the issue, it may indicate a hardware problem, such as a failing eMMC (the internal storage chip).
