All these experience has been proved and tested over years. Firstly, there is no way to find out phone charger-pin secondly, even when you know charger-pin and set it to higher level, phone will directly reduce it because of heavy current, as a result, it fails to play the role of higher level as well as abnormal of phone detection/read/write operations. When setting higher level to general SCM can only provide the current of 20 Ma. If you cannot find phone's charger-pin accurately and set VCC definition to it, phone will not respond to Read/Write operation at all.
Because many phones can't work normally without GND and VCC, especially for MSTAR cpu phones.
VOLCANO BOX CURRENT OVER VOLTAGE SOFTWARE
This product brings China phones servicing into new level, why ? There are exclusively many new functions that are available only in Volcano box like Digital resistance (It achieves to pull up/down any resistor, this performs important role when detecting USB definition), Completely GND and VCC control functions (Volcano's upper panel controls phone connector GND and VCC, which ensures phone to work normally and coordinate with box software analysis to detect charger-pin accurately), Set pull up/down to any pinout (you can set any pinout up/down with a variable resistance value on TX from 5 to 10K) as also Internal powerful CPLD. This solution reduces the lengths of the RS-485 lines that appear sensitive to lightning and the GPS time synchronization provides a common time base for all measurement data.Volcano Box it's new product from world know Furious Team that supports China phone. The Géosciences laboratory is currently improving its acquisition network by installing several Q.stations at different locations around the volcano. A Pelican case is then placed inside the first box, which contains the DAQ system and protects against humidity and acidic gases. The conditions inside this container roughly correspond to IP62 except for the acidic gases present. The first box on the outside is used to protect against heavy rains and wind. The systems are protected using a “double box” technique. Despite these harsh conditions, Gantner Instruments systems remain operational almost all the time. The main difficulties are heavy tropical rain (8,000 mm per year), strong winds, lightning storms, and acidic gases emitted by fumaroles. The environmental conditions at the top of the volcano are very harsh. The team’s previous positive experience with the Gantner Instruments’ e.series (e.reader, e.pac, and e.bloxx) led them to retain the Q.series to develop their new acquisition network. In response to the volcano regaining activity since 2014, the Géosciences laboratory decided to increase their monitoring capacity on the top of the lava dome by deploying a network of sensors (e.g., Pt100 in fumaroles, 1D and 3D seismic geophones, thermocouples in the soil, pressure sensor and Pt100 in the boiling acid lake). La Grande Soufrière is located in Guadeloupe, a French overseas region located in the southern Caribbean Sea. The team at Geosciences Rennes, a joint mixed research unit between the University of Rennes and the CNRS (UMR-6118), has been conducting monitoring experiments on the volcano La Grande Soufrière over the last 15 years. Distributed networks of sensors must be easily adapted to the volcano’s evolving state and the appearance of new active areas like fumaroles or high heat flux in the soil. For these types of volcanoes, monitoring involves multiphysics measurements on dense networks.
Recently, most fatal issues occurred on volcanoes with low-energy and moderate activity, making them attractive touristic places (e.g., the 2014 Mount Ontake eruption in Japan). Monitoring volcano activity is an important issue in the mitigation of natural hazards.