| Sampling |
| North West corner Latitude: Longitude: |
| South East corner Latitude: Longitude: |
| Sampling Poinst: N-S axis: W-E axis: |
| Plot Options |
| Units: |
| Rounding for legend (decimal places): |
| Save/Load Cookie |
| Other Options |
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Go to the desired location in the map, set two markers by clicking the map to define a rectangle (or enter coordinates manually). Click the button [get data]. Optionally you can change the number of elevation samples you want in each direction, the more the better (max 400). You can also change the number of contours or set custom contour values. You can save some data in cookies, however there is a limit. Use the manual saving text areas below alternatively.
This service comes without any warranty whatsoever, including but not limited to functioning or correctness.
Resources: This service uses ArcGIS Map by Esri, the OpenStreetMap, Geocoding by Nominatim, Mapzen, Leaflet, jQuery and the CONREC contouring algorithm by Paul Bourke and Jason Davies.
Created by Christoph Hofstetter (christophhofstetter (at) gmail.com) 2013-2025If you want to have the contour maps as an individual layer (e.g. to create overlays) you can copy the code underneath the image below and save it as an svg file. Please note, as for now, the drawing below is square and you may want to stretch it to cover the actual area in a map.
| Download SVG file |
| Download KML file |
This document is for educational and hardware maintenance purposes only. Modifying, repairing, or spoofing IMEI numbers is illegal in many jurisdictions if done to obscure the identity of a device or for fraudulent purposes. Users should only restore original IMEI numbers to devices where the data was accidentally lost during legitimate repairs (e.g., flashing firmware). Always ensure you have the legal right to perform these operations.
Click "Write" or "Start." Once the tool shows a "Passed" or "Success" message, reboot the device. Crucial Safety Tips
Unisoc IMEI Repair Tool is a specialized utility used to restore or fix the International Mobile Equipment Identity (IMEI) number on smartphones powered by Unisoc (formerly Spreadtrum) chipsets. These tools are typically used when a device shows an "Invalid IMEI" error, which often happens after a bad firmware flash, a system crash, or a deep software reset. Common Unisoc IMEI Repair Tools
Most UNISOC repair tools operate by putting the device into . The software then communicates with the chipset's baseband processor to write data directly to the device’s NVRAM or security partitions. Some advanced tools also offer "patching" methods for modern security layers, often requiring an unlocked bootloader to execute the changes. Legal and Ethical Challenges